cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the Capacity of Doubly Correlated MIMO Channels
Creators: name: Shin, Hyundong
name: Win, Moe Z.
name: Lee, Jae Hong
name: Chiani, Marco
Publisher: name: arXiv
Year: 2005
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we analyze the capacity of multiple-input multiple-output (MIMO) Rayleigh-fading channels in the presence of spatial fading correlation at both the transmitter and the receiver, assuming that the channel is unknown at the transmitter and perfectly known at the receiver. We first derive the determinant representation for the exact characteristic function of the capacity, which is then used to determine the trace representations for the mean, variance, skewness, kurtosis, and other higher-order statistics (HOS). These results allow us to exactly evaluate two relevant information-theoretic capacity measures--ergodic capacity and outage capacity--and the HOS of the capacity for such a MIMO channel. The analytical framework presented in the paper is valid for arbitrary numbers of antennas and generalizes the previously known results for independent and identically distributed or one-sided correlated MIMO channels to the case when fading correlation exists on both sides. We verify our analytical results by comparing them with Monte Carlo simulations for a correlation model based on realistic channel measurements as well as a classical exponential correlation model.
description: To appear in the IEEE Transactions on Wireless Communications
Fabifenestella Morozova 1974
Creators: name: Ernst, Andrej
name: Senowbari-Daryan, Baba
name: Hamedani, Ali
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Bryozoa
Stenolaemata
Fenestrida
Fenestellidae
Fabifenestella

description: Genus Fabifenestella Morozova, 1974
 TYPE SPECIES. — Fenestella praevirgosa Shulga-Nesterenko, 1951. Upper Carboniferous, Russian Platform.
 Fabifenestella jabiensis (Waagen & Pichl, 1885) (Figs 6O, P; 7 A-C; Table 16)
 Fenestella jabiensis Waagen & Pichl, 1885: 778-780, pl. 87, fig. 4, pl. 88, figs 1, 2. — Sakagami 1970?: 54, 55, pl. 9, figs 4, 5.
 Fabifenestella jabiensis – Morozova 2001: 53.
MATERIAL EXAMINED. — 4-4-1, 4-15, 4-16, 4-18, 5-2, 5-8-4, 7-3-1, 7-6, 10-1, 10-2(a), 25-5, 25-8, 25-10, 25-11, 25-12.
OCCURRENCE. — Salt Range: Pakistan, Middle Permian (Guadalupian) (Waagen & Pichl 1885). Lakaftari: central Iran, Jamal Formation, Middle Permian. Peninsular Thailand, Lower Permian (Artinskian) (Sakagami 1970).
DESCRIPTION
Micrometric formula: 13-19/7-12//17-21. Reticulated colonies with straight branches, joined by relatively thick dissepiments. Bifurcation common. Autozooecia arranged in 2 alternating rows on branches. Apertures circular, with 8 peristomal nodes, spaced 3-4 per length of a fenestrule. Shape of fenestrules varying from oval to slightly rectangular. Keel low, carrying two alternating rows of small nodes. Some colonies containing larger nodes between smaller ones. Internal granular skeleton thin, continuous with obverse keel, nodes, rods, peristome and across dissepiments. Outer lamellar skeleton moderately thick, containing abundant microacanthostyles 5-15 µm in diameter, with distinct hyaline cores and very thin dark laminated cores. No heterozooecia observed.
INTERIOR DESCRIPTION
Autozooecia rectangular to bean-shaped in the middle tangential section, low and elongated, with well developed vestibule; aperture positioned at distal to distal-abaxial end of chamber. Superior hemisepta long; inferior hemisepta long, low, separating the proximal third of the chamber.
COMPARISON
 Fabifenestella jabiensis differs from F. vediensis n. comb. in having thicker branches, and larger fenestrules. Sakagami (1970) described a specimen from Artinskian of Peninsular Thailand, which he placed in Fabifenestella jabiensis. However, it has much thicker branches (0.52-0.60 vs. 0.30-0.48 mm in present material), although revealing close morphological similarity to the material described in present paper. Waagen & Pichl (1885) did not give any detailed measurements for F. jabiensis as well as no scale for the plates. Unfortunately, the deposition of the type material for this species is also unknown.
REMARK
 Morozova (2001) mentioned two species under different generic names: Minilya jabiensis and Fabifenestella jabiensis. They correspond to the same species, Fabifenestella jabiensis.
description: Published as part of Ernst, Andrej, Senowbari-Daryan, Baba & Hamedani, Ali, 2006, Middle Permian Bryozoa from the Lakaftari area, northeast of Esfahan (central Iran), pp. 543-590 in Geodiversitas 28 (4) on pages 560-562, DOI: 10.5281/zenodo.4665450
Preparation and Characterization of High-Entropy Alloy (TaNb)$_{1-x}$(ZrHfTi)$_x$ Superconducting Films
Creators: name: Zhang, Xiaofu
name: Winter, Natascha
name: Witteveen, Catherine
name: Moehl, Thomas
name: Xiao, Yuan
name: Krogh, Fabio
name: Schilling, Andreas
name: von Rohr, Fabian O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the preparation and the physical properties of superconducting (TaNb)_1-x(ZrHfTi)_x high-entropy alloy films. The films were prepared by means of magnetron sputtering at room temperature, with x ranging from 0 to 1 with an average thickness of 600 - 950 nm. All films crystallize in a pseudo body-centered cubic (BCC) structure. For samples with x < 0.65, the normal-state properties are metallic, while for x > 0.65 the films are weakly insulating. The transition from metallic to weakly insulating occurs right at the near-equimolar stoichiometry. We find all films, except for x = 0 or 1, to become superconducting at low temperatures, and we interpret their superconducting properties within the Bardeen-Cooper-Schrieffer (BCS) framework. The highest transition temperature T_c = 6.9 K of the solid solution is observed for x = 0.43. The highest upper-critical field B_c2(0) = 11.05 T is found for the near-equimolar ratio x = 0.65, where the mixing entropy is the largest. The superconducting parameters derived for all the films from transport measurements are found to be close to those that are reported for amorphous superconductors. Our results indicate that these films of high-entropy alloys are promising candidates for superconducting device fabrication.
Permutation groups of prime degree, a quick proof of Burnside's theorem
Creators: name: Müller, Peter
Publisher: name: arXiv
Year: 2003
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20B05

description: A transitive permutation group of prime degree is doubly transitive or solvable. We give a direct proof of this theorem by Burnside which uses neither S-ring type arguments, nor representation theory.
description: 4 pages
Optical Phase Measurement Using a Deterministic Source of Entangled Multi-photon States
Creators: name: Peniakov, Giora
name: Su, Zu-En
name: Beck, Ayal
name: Cogan, Dan
name: Amar, Or
name: Gershoni, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Precision measurements of optical phases have many applications in science and technology. Entangled multi-photon states have been suggested for performing such measurements with precision that significantly surpasses the shot-noise limit. Until recently, such states have been generated mainly using spontaneous parametric down-conversion -- a process which is intrinsically probabilistic, counteracting the advantages that the entangled photon states might have. Here, we use a semiconductor quantum dot to generate entangled multi-photon states in a deterministic manner, using periodic timed excitation of a confined spin. This way we entangle photons one-by-one at a rate which exceeds 300 MHz. We use the resulting multi-photon state to demonstrate super-resolved optical phase measurement. Our results open up a scalable way for realizing genuine quantum enhanced super-sensitive measurements in the near future.
description: 8 pages, 5 figures
Eridopora Ulrich 1882
Creators: name: Ernst, Andrej
name: Senowbari-Daryan, Baba
name: Hamedani, Ali
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Bryozoa
Stenolaemata
Cystoporida
Fistuliporidae
Eridopora

description: Genus Eridopora Ulrich, 1882
 TYPE SPECIES. — Eridopora macrostoma Ulrich, 1882. Mississippian (Carboniferous); Kentucky (USA).
description: Published as part of Ernst, Andrej, Senowbari-Daryan, Baba & Hamedani, Ali, 2006, Middle Permian Bryozoa from the Lakaftari area, northeast of Esfahan (central Iran), pp. 543-590 in Geodiversitas 28 (4) on page 549, DOI: 10.5281/zenodo.4665450
Survival law in a potential model
Creators: name: De Leo, S.
name: Rotelli, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The radial equation of a simple potential model has long been known to yield an exponential decay law in lowest order (Breit-Wigner) approximation. We demonstrate that if the calculation is extended to fourth order the decay law exhibits the quantum Zeno effect. This model has further been studied numerically to characterize the extra exponential time parameter which compliments the lifetime. We also investigate the inverse Zeno effect.
description: 16 pages, 2 tables, 3 figures, AMS-TeX
Measuring the tangle of three-qubit states
Creators: name: Pérez-Salinas, Adrián
name: García-Martín, Diego
name: Bravo-Prieto, Carlos
name: Latorre, José I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a quantum circuit that transforms an unknown three-qubit state into its canonical form, up to relative phases, given many copies of the original state. The circuit is made of three single-qubit parametrized quantum gates, and the optimal values for the parameters are learned in a variational fashion. Once this transformation is achieved, direct measurement of outcome probabilities in the computational basis provides an estimate of the tangle, which quantifies genuine tripartite entanglement. We perform simulations on a set of random states under different noise conditions to asses the validity of the method.
description: 7 pages, 6 figures; Published: 11 April 2020
Canavaria zancleana
Creators: name: Fauré, Philippe
name: Alméras, Yves
name: Sekatni, Nejla
name: Zargouni, Fouad
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Ammonoidea
Hildoceratidae
Canavaria
Canavaria zancleana

description: Canavaria zancleana (Fucini, 1931) (Fig. 5H)
 Emaciaticeras zancleanum Fucini, 1931: 121, pl. 11, figs 13-18.
 Canavaria (Canavaria) zancleana – Braga 1983: 295, pl. 14, figs 13-15, avec synonymie.
 Canavaria zancleana – Macchioni & Meister 2003: 402, pl. 10, fig. 16, avec synonymie.
MATÉRIEL. — Est du Poste Optique, niveau 30, PFT118.1-2, 2 exemplaires.
DESCRIPTION
Nous rapprochons de cette espèce deux individus dont les côtes rigides, légèrement rursiradiées, présentent un fort relief ventro-latéral à partir duquel elles s’infléchissent légèrement vers l’avant et s’effacent ensuite totalement. Deux sillons peu profonds longent la carène.
ÂGE ET RÉPARTITION
Zone à Emaciatum, sous-zone à Elisa (horizon à Serotinum selon Macchioni & Meister 2003). L’espèce est largement répandue dans toute la Téthys occidentale.
description: Published as part of Fauré, Philippe, Alméras, Yves, Sekatni, Nejla & Zargouni, Fouad, 2007, Le Pliensbachien de Jebel Zaghouan (Tunisie). Nouvelles données fauniques. Implications biostratigraphiques et paléobiogéographiques, pp. 473-506 in Geodiversitas 29 (4) on page 490, DOI: 10.5281/zenodo.4665559
Quantum computing with antiferromagnetic spin clusters
Creators: name: Meier, Florian
name: Levy, Jeremy
name: Loss, Daniel
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that a wide range of spin clusters with antiferromagnetic intracluster exchange interaction allows one to define a qubit. For these spin cluster qubits, initialization, quantum gate operation, and readout are possible using the same techniques as for single spins. Quantum gate operation for the spin cluster qubit does not require control over the intracluster exchange interaction. Electric and magnetic fields necessary to effect quantum gates need only be controlled on the length scale of the spin cluster rather than the scale for a single spin. Here, we calculate the energy gap separating the logical qubit states from the next excited state and the matrix elements which determine quantum gate operation times. We discuss spin cluster qubits formed by one- and two-dimensional arrays of s=1/2 spins as well as clusters formed by spins s>1/2. We illustrate the advantages of spin cluster qubits for various suggested implementations of spin qubits and analyze the scaling of decoherence time with spin cluster size.
description: 15 pages, 7 figures; minor changes
RESOURCE USE ENTITLEMENT, FINANCE AND ENTREPRENEURSHIP IN SUB-SAHARAN SMALLHOLDER AGRICULTURE
Creators: name: Groenewald, Jan A.
name: Groenewald, Jan A.
Publisher: name: Unknown
Year: 1993
Subjects: Agribusiness
Agricultural and Food Policy

description: The "poor but efficient" hypothesis of T.W. Schultz is by now generally accepted. Agricultural progress and entrepreneurship are however hampered by various bottlenecks. The absence of appropriate technology and related knowhow is at least partly the result of misguided perceptions concerning appropriateness and a bias favouring large farmers among agriculturalists. Land tenure arrangements form another obstacle, as does lack of productive assets and factor markets. These considerations prevent entrepreneurial development. Tenure and size relationships are inseperable, with the latter largely a function of entrepreneurial ability. Action to rectify these stumblingblocks will depend on sound financing, which in its turn influences and is influenced by entrepreneurial ability. The crucial factor is not property, but ownership and entitlement. Lease is often preferable to purchase. In land relationships, the land market, which implies at the least rental of use rights, is the crucial factor. Decisions involving financial structure are closely associated with both entrepreneurship and financial results. Credit should be evaluated within this framework. Loan tying can produce perverse behaviour and results, and subsidized interest is seldom beneficial. State lending institutions have a poor track record internationally, while the experience with credit cooperatives appears to be mixed. Small lender groups have proven themselves as appropriate intermediaries, since they foster selfhelp and entrepreneurship. The solution obviously does not lie in only one factor. Synergy exists between technology, tenure, infrastructure and finance in the fostering of entrepreneurship and agricultural progress.
Additional file 1 of Stem/progenitor cell marker expression in clear cell renal cell carcinoma: a potential relationship with the immune microenvironment to be explored
Creators: name: Ju-Yoon Yoon
name: Gedye, Craig
name: Paterson, Joshua
name: Ailles, Laurie
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Supp. Figure 1. Correlation heatmap displaying the Pearson correlations between the 19 stem/progenitor cell marker genes in the TCGA cohort vs. PTPRC and immune checkpoint inhibitor genes.
Rostellariidae Gabb 1868
Creators: name: Pacaud, Jean-Michel
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Rostellariidae

description: Famille ROSTELLARIIDAE Gabb, 1868  REMARQUES
 Les taxons supra-spécifiques des gastéropodes proches des Tibia Röding, 1798 récents ont été revus par Kronenberg & Burger (2002). Basés sur des caractères conchologiques, ces taxons sont considérés comme des genres plutôt que comme des sous-genres. La famille Rostellariidae, comprenant le genre Tibia récent ainsi qu’un certain nombre de genres fossiles, est étroitement proche des Strombidae Rafinesque, 1815, mais en est séparée. Les relations exactes dans ce clade restent incertaines. Nous suivons ces auteurs et considérons ici la famille des Rostellarriidae.
description: Published as part of Pacaud, Jean-Michel, 2008, Terebellomimus quaggiottoi n. gen., n. sp. (Mollusca, Gastropoda, Littorinimorpha, Rostellariidae) du Lutétien inférieur (Éocène moyen) du Vicentin (Italie), pp. 721-729 in Geodiversitas 30 (4) on pages 721-729, DOI: 10.5281/zenodo.4665607
Additional file 2 of Stem/progenitor cell marker expression in clear cell renal cell carcinoma: a potential relationship with the immune microenvironment to be explored
Creators: name: Ju-Yoon Yoon
name: Gedye, Craig
name: Paterson, Joshua
name: Ailles, Laurie
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Supp. Figure 2. Clustered expression heatmap, displaying the expression levels for 13 markers (12 stem/progenitor cell markers and CD10) in the six patient samples, in the four different cell populations as indicated.
Tau-Mu Flavor Violation and the Scale of New Physics
Creators: name: Black, Deirdre
name: Han, Tao
name: He, Hong-Jian
name: Sher, Marc
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the strong experimental evidence of large nu_mu - nu_tau neutrino oscillations, we study existing constraints for related mu - tau flavor violation. Using a general bottom-up approach, we construct dimension-6 effective fermionic operators whose coefficients encode the scale of new physics associated with mu - tau flavor violation, which is a piece in the puzzle of the origin of neutrino oscillations. We survey existing experimental bounds on this scale, which arise mostly from tau and B decays. In many cases the new physics scale is constrained to be above a few TeV. We also discuss the operators which are either weakly constrained or, at present, subject to no experimental bounds.
description: Proceedings for MRST 2003, Joe Schechter Fest, Syracuse University, New York, May 2003. 8 pages, 2 figures
VIEWPOINT: PROPOSALS ON LAND REFORM, PRIVATISATION AND FARMING MODELS - SOME LESSONS FROM EXPERIENCE IN SOUTH AFRICAN AGRICULTURE
Creators: name: Van Rooyen, Johan
name: Coetzee, Gerhard
name: Swart, Danie
name: Van Rooyen, Johan
name: Coetzee, Gerhard
name: Swart, Danie
Publisher: name: Unknown
Year: 1993
Subjects: Agricultural and Food Policy
Land Economics/Use

description: Privatisation of farming and land use should be viewed as potentially an important strategy in the process of agricultural restructuring and land reform in view of its "empower" attributes as well as providing incentives to productively invest in farming. Privatisation, however, is but one instrument towards rural restructuring and land reform. Farming is essentially a private sector action. Ownership of assets and the right to decision-making are vital elements for successful farming. The choice of farming model will therefore be important. Present land tenure arrangements must be expected to be an additional major factor in the selection of appropriate farming models.
Transmission Line Pulse (TLP) as integrative method for the investigation of ultra-fast trapping mechanisms on high-k MIM
Creators: name: Merlo, Luca
name: Rossetto, Isabella
name: Cerati, Lorenzo
name: Ghidini, Gabriella
name: Milani, Antonella
name: Toia, Fabrizio
name: Piagge, Rossella
name: Di Biccari, Leonardo
name: Gevinti, Eleonora
name: Croce, Giuseppe
name: Andreini, Antonio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper discusses the transmission line pulse (TLP) analysis, generally used for electrostatic discharge (ESD) device characterization, as high potential usable tool also for non-ESD structures. TLP technique, combined with DC and pulsed I-V characterization, is performed to study the contribution of trap states on current conduction in metal-insulator-metal (MIM) capacitors with an HfAlO stack. The importance of the above mentioned methods is demonstrated by comparing two generations of samples with slightly different charge trapping mechanisms; their impact on the current conduction is furthermore studied by decreasing the pulse width down to 50nsec. TLP analysis is finally discussed as interesting method to investigate the influence of trap states on the device robustness. The evaluation of breakdown voltage for different time pulses allows to discriminate whether different failure mechanisms occur or not and to establish the impact of trap states on short-term reliability.
description: Uploaded document is a pre-print version, not the final one published on journal. This work was partially supported by ECSEL-JU R2POWER300 project under grant agreement no. 653933
OPTIMAL NON-LINEAR INCOME TAXATION FOR THE ALLEVIATION OF INCOME POVERTY
Creators: name: Kanbur, Ravi
name: Keen, Michael
name: Kanbur, Ravi
name: Keen, Michael
Publisher: name: Unknown
Year: 1990
Subjects: Financial Economics
Food Security and Poverty

description: This paper is concerned with the optimal use of income information in the design of tax/transfer systems to alleviate poverty. The issue is one of optimal non-linear income taxation, but using a non-welfarist objective function that seems to accord well with the common concerns of policy debbate: an income-based poverty index. We show that one of the key results of the wlefarist literature is overturned: if is is desirable for everybody to work, the optimal marginal tax rate on the very poorest individuals is strictly negative. More generally, it is argued that the non-welfarist perspective points towards lower marginal tax rates in the lower part of the distribution that does the welfarist. Numerical simulations suggest, however, that this effect is of limited quantitative significance. Using conventional functional forms and parameter values, optimal marginal tax rates on the poor are in the 60-70% range.
Using a Simulation Model to Assess the Impact of a Lung Cancer Screening Regimen on Wait Times and Cancer Stage Distribution
Creators: name: Landry, Nadia
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2022
Subjects: Lung Cancer Screening
Lung Cancer Screening Policies
Simulation Modelling

description: Lung cancer is the number one cause of cancer related deaths in Ontario and throughout Canada. The 5-year survival rate for those diagnosed with lung cancer in 2020 was approximately 22.2%. Poor screening techniques is the main cause of low survival rates and late detection. Recent advancements in screening for lung cancer have led researchers to look at the benefits of using low-dose CT (LDCT) scanning to screen patients at high risk for lung cancer in order to detect the cancer in its earlier stages. There is strong evidence that using this new method of testing in lung cancer screening can reduce lung cancer related mortality by increasing the chance that the disease is detected in an earlier stage and in turn improving the patient’s chance at life saving treatment. Lung cancer screening requires LDCT resources and, based on the current recommendations, there is a concern that the new demand for imaging may exceed existing capacity of the imaging centers. This research evaluates impact of the Lung Cancer Screening Pilot for People at High Risk on the imaging resources and aims to answer the question: What would be the system performance for different imaging policies assuming a fixed imaging capacity? Administrative data from the Ottawa Hospital (TOH) as well as data from other research projects were used in order to develop and populate a simulation model. The policies that were assessed include: using biannual screening for patients who receive a negative baseline scan, using annual screening for patients with a negative baseline scan with all suspicious patients returning for a follow-up scan in six months, using annual screening for patients with a negative baseline scan with all suspicious patients returning for a follow-up scan in three months, using biannual screening for patients with a negative baseline scan with all suspicious patients returning for a follow-up scan in six months and using biannual screening for patients with a negative baseline scan with all suspicious patients returning for a follow-up scan in three months. These policies were assessed by looking at wait times for patients to be screened. Possible shift between lung cancer stages was also considered. The impact of this study is to look at system performances for different screening policies that could be used assuming a fixed imaging capacity. It represents a first step for further research should the data that is needed become available.
INFLUENCES OF PAST HISTORY ON THE INCIDENCE OF YOUTH UNEMPLOYMENT: EMPIRICAL FINDINGS FOR THE U.K.
Creators: name: Narendranathan, Wiji
name: Elias, Peter
name: Narendranathan, Wiji
name: Elias, Peter
Publisher: name: Unknown
Year: 1990
Subjects: subject: Labor and Human Capital
subject: Research Methods/ Statistical Methods
subject: STATE DEPENDENCE
subject: YOUTH UNEMPLOYMENT
subject: LONGITUDINAL ANALYSIS
subject: OMITTED HETEROGENEITY

description: The issue of whether or not there is evidence of a causal relationship between the experience of unemployment and the future economic activity of an individual is, as yet, unresolved by labour economists. Theoretical reasoning suggests that one may expect to find such a relationship, either through a reduction in human capital or through employer 'labelling' or 'screening' processes. This paper considers the issues which lend complexity to the problem and seeks to address these issues using a variety of techniques. In particular, problems arising from interval and point sampling of longitudinal information, the effects of observed and unobserved heterogeneity and from the lack of control for serially correlated exogenous factors are investigated. The study focuses upon the work histories of a group of young males who left school in 1974 at the age of 16 years in the U.K. We find that, having controlled for observed and unobserved heterogeneity, the odds of becoming unemployed are 2.3 times higher for youths who were unemployed last year than for youths who were not unemployed; but, given the current status, the past unemployment history of the individual is not informative about his future chances of being unemployed.
Bottomonia correlators and spectral functions at zero and finite temperature
Creators: name: Petrov, K.
name: Jakovac, A.
name: Petreczky, P.
name: Velytsky, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present preliminary studies of bottomonia spectral functions at zero and finite temperature using quenched anisotropic lattices. The heavy quark is treated within Fermilab approach. We find no modification of the $η_b$ and $Υ$ states up to temperatures $2.3T_c$ while our study suggest dissolution of $χ_b$ state at $1.15T_c$.
description: 5 pages, 6 figures, PoS.cls, Lattice 2005
Terebellomimus quaggiottoi Pacaud 2008, n. sp.
Creators: name: Pacaud, Jean-Michel
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Rostellariidae
Terebellomimus
Terebellomimus quaggiottoi

description: Terebellomimus quaggiottoi n. sp. (Fig. 3)
MATÉRIEL TYPE. — Holotype (MGPD 29741, leg. Quaggiotto).
Paratypes: un fragment de spire (MGPD 29742, leg. Quaggiotto); deux exemplaires, un spécimen complet (MNHN A26056, leg. Quaggiotto) et un fragment de spire (MNHN A26635, leg. Quaggiotto), un spécimen complet (coll. Quaggiotto).
LOCALITÉ TYPE. — Cava Albanello di Nogarole Vicentino, Vicenza (Vicentin, Italie).
ÉTAGE TYPE. — Lutétien inférieur (Éocène moyen).
ÉTYMOLOGIE. — Espèce dédiée à Ermanno Quaggiotto qui l’a récoltée.
DIMENSIONS. — Holotype (MGPD 29741): hauteur: 30 mm; diamètre maximum: 6,5 mm. Paratype (MNHN A26056): hauteur: 27 mm; diamètre maximum: 5 mm. Paratype (coll. Quaggiotto): hauteur: 27,5 mm; diamètre maximum: 5 mm.
DESCRIPTION
Coquille de petite taille, très étroite et allongée, térébelloïde, à surface lisse. Protoconque érodée. Téléoconque à spire courte, pointue, émergeant à peine du dernier tour qui forme toute la coquille. Ouverture rectiligne, longue et étroite, rétrécie dans son angle adapical, largement ouverte et amincie dans sa partie abapicale. Canal siphonal droit, non acuminé dans sa partie terminale.Encoche siphonale peu marquée, largement évasée.L’ouverture présente un canal exhalant court, limité à son péristome adapical, légèrement sinueux. Labre d’orientation orthocline, non réfléchi vers l’extérieur, présentant une légère sinuosité dans son extrémité adapicale, induite par le canal exhalant, épaissi par un bourrelet de section ronde, légèrement marginé sur le profil, fin dans sa partie interne. Columelle rectiligne. L’exposition sous lumière UV ne montre aucune trace de motif coloré résiduel.
description: Published as part of Pacaud, Jean-Michel, 2008, Terebellomimus quaggiottoi n. gen., n. sp. (Mollusca, Gastropoda, Littorinimorpha, Rostellariidae) du Lutétien inférieur (Éocène moyen) du Vicentin (Italie), pp. 721-729 in Geodiversitas 30 (4) on pages 721-729, DOI: 10.5281/zenodo.4665607
Optimal-size problem kernels for $d$-Hitting Set in linear time and space
Creators: name: van Bevern, René
name: Smirnov, Pavel V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: F.2.2; G.2.1
subject: 68Q25

description: The known linear-time kernelizations for $d$-Hitting Set guarantee linear worst-case running times using a quadratic-size data structure (that is not fully initialized). Getting rid of this data structure, we show that problem kernels of asymptotically optimal size $O(k^d)$ for $d$-Hitting Set are computable in linear time and space. Additionally, we experimentally compare the linear-time kernelizations for $d$-Hitting Set to each other and to a classical data reduction algorithm due to Weihe.
description: More detailed algorithm descriptions, extended experimental section
title: Chemically modified hydroxyethyl cellulose as a new excipient for transmucosal delivery
Creators: name: Buang, Fhataheya
Publisher: name: University of Reading
Year: 2026

description: In the pharmaceutical industry, excipients such as cellulose and its derivatives are often used 
in the formulation of dosage forms as binders for tablets, viscosity enhancers, gelling agents, 
coating agents, etc. In addition to its basic functionality, this polymer can be modified to 
provide additional properties that optimise its performance in a particular application. An 
example of properties that are of great interest is mucoadhesion. The mucoadhesive properties 
allow greater contact between the formulation and the oral mucosa for a slow release of the 
active ingredient. Among the cellulose derivatives, hydroxyethyl cellulose (HEC) has weak 
mucoadhesive properties. However, it can be improved by modification with unsaturated 
groups such as methacryloyl, maleimide, acryloyl and divinyl sulfone. The newly modified 
HEC can interact with mucin glycoproteins by forming covalent bonds between the 
electronegative unsaturated end groups of the modified polymer and the less electronegative 
parts of the mucin glycoprotein (cysteine) via the Michael addition reaction. In this thesis, we 
have synthesised HEC with methacryloyl, maleimide, acryloyl and divinyl sulfone groups. The 
successful synthesis of the new polymers was validated using 1H NMR and FTIR. It was further 
quantified by either 1H NMR, HPLC and/or elemental analysis. These modified polymers were 
developed into various blank dosage forms (wafers, films, spray-coated tablets and 
microparticles) to determine their mucoadhesiveness using a texture analyser. A safety study 
was performed using planarian acute toxicity assays and planarian fluorescent toxicity assays. 
The safety study was further supported by in vitro toxicity assay using Caco-2 cells. Our 
findings suggest that synthesis process of all HEC derivatives was successful and regardless of 
molar ratio, the modified HEC with methacryloyl, maleimide, acryloyl and sulfone groups has 
improved the mucoadhesiveness of the native HEC. Additionally, the newly modified 
excipients are water soluble, versatile in dosage form development and easy to synthesis (one�pot synthesis method) under normal environmental conditions. These results support the idea 
that non-ionic HEC modified with unsaturated groups such as methacryloyl, maleimide, 
acryloyl and sulfone groups significantly improves the mucoadhesive properties of native 
HEC. Therefore, modified HEC with methacryloyl, maleimide, acryloyl and sulfone groups 
has great potential as a new multifunctional excipient for transmucosal drug delivery, as it has 
the advantage of being mucoadhesive yet retaining the non-ionic nature of HEC derivatives. 
This may promote greater compatibility with charged drug molecules in dosage form 
formulations.
Parallax in microlensing toward the Magellanic Clouds: effect on detection efficiency and detectability
Creators: name: Blaineau, T.
name: Moniez, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Aims. We study the impact of the parallax on the search for very long timescale microlensing events towards the Magellanic Clouds due to dark massive compact objects within the past MACHO and EROS, the ongoing MOA and OGLE, and the future LSST surveys. We quantify the impact of neglecting this effect on the classical event selection process and also quantify the parallax detectability without the help of follow-up observations.Methods. We define a distance between true events affected by parallax and the closest events without parallax. This distance is used to estimate the probability of missing the preselection of events because of parallax, for any survey characterised by its time sampling and photometric performance. We also define another distance to quantify the detectability of the parallax effect, in order to trigger complementary observations.Results. We find that the preselection of years long time scale events is marginally affected by parallax for all surveys, provided the criteria are reasonably tight. We also show that the parallax should be detectable in the majority of the events found by the LSST survey without follow-up observations.
Some issues related to the direct detection of dark matter
Creators: name: Vergados, J. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We briefly review some theoretical issues involved in the direct detection of supersymmetric (SUSY) dark matter. After a brief discussion of the allowed SYSY parameter space we focus on the determination of the traditional neutralino detection rates, in experiments which measure the energy of the recoiling nucleus, such as the coherent and spin induced rates and the dependence of the rate on the motion of the Earth (modulation effect). Then we examine the novel features appearing in directional experiments, which detect the recoiling nucleus in a given direction. Next we estimate the branching ratios for transitions to accessible excited nuclear levels. Finally we estimate the event rates leading to the atom ionization and subsequent detection of the outgoing electrons.
description: LaTex, 15 pages, 3 PostScript figures
On the notion of canonical dimension for algebraic groups
Creators: name: Berhuy, G.
name: Reichstein, Z.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Geometry (math.AG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 11E72, 14L30, 14J70

description: We define and study a new numerical invariant of an algebraic group action which we call the canonical dimension. We then apply the resulting theory to the problem of computing the minimal number of parameters required to define a generic hypersurface of degree d in P^{n-1}.
description: Significantly strenghtened, compared to the earlier version. To appear in Advances in Mathematics, 41 pages
Planets in triple star systems--the case of HD188753
Creators: name: Zwart, Simon Portegies
name: McMillan, Steve
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the formation of the recently discovered ``hot Jupiter'' planet orbiting the primary component of the triple star system HD188753. Although the current outer orbit of the triple is too tight for a Jupiter-like planet to have formed and migrated to its current location, the binary may have been much wider in the past. We assume here that the planetary system formed in an open star cluster, the dynamical evolution of which subsequently led to changes in the system's orbital parameters and binary configuration. We calculate cross sections for various scenarios that could have led to the multiple system currently observed, and conclude that component A of HD188753 with its planet were most likely formed in isolation to be swapped in a triple star system by a dynamical encounter in an open star cluster. We estimate that within 500pc of the Sun there are about 1200 planetary systems which, like Hd188753, have orbital parameters unfavorable for forming planets but still having a planet, making it quite possible that the HD188753 system was indeed formed by a dynamical encounter in an open star cluster.
description: ApJ Letters in press
Shape dependence of the finite-size scaling limit in a strongly anisotropic $O(\infty)$ model
Creators: name: Caracciolo, Sergio
name: Gambassi, Andrea
name: Gubinelli, Massimiliano
name: Pelissetto, Andrea
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We discuss the shape dependence of the finite-size scaling limit in a strongly anisotropic O(N) model in the large-N limit. We show that scaling is observed even if an incorrect value for the anisotropy exponent is considered. However, the related exponents may only be effective ones, differing from the correct critical exponents of the model. We discuss the implications of our results for numerical finite-size scaling studies of strongly anisotropic systems.
description: 21 pages, 4 figures
Time-dependent optimized coupled-cluster method for multielectron dynamics III: A second-order many-body perturbation approximation
Creators: name: Pathak, Himadri
name: Sato, Takeshi
name: Ishikawa, Kenichi L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report successful implementation of the time-dependent second-order many-body perturbation theory using optimized orthonormal orbital functions called time-dependent optimized second-order many-body perturbation theory [TD-OMP2] to reach out to relatively larger chemical systems for the study of intense-laser-driven multielectron dynamics. We apply this method to strong-field ionization and high-order harmonic generation (HHG) of Ar. The calculation results are benchmarked against ab initio time-dependent complete-active-space self-consistent field (TD-CASSCF), time-dependent optimized coupled-cluster double (TD-OCCD), and time-dependent Hartree-Fock (TDHF) methods, as well as a single active electron (SAE) model to explore the role of electron correlation.
Anomalous levitation and annihilation in Floquet topological insulators
Creators: name: Liu, Hui
name: Fulga, Ion Cosma
name: Asboth, Janos K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Anderson localization in two-dimensional topological insulators takes place via the so-called levitation and pair annihilation process. As disorder is increased, extended bulk states carrying opposite topological invariants move towards each other in energy, reducing the size of the topological gap, eventually meeting and localizing. This results in a topologically trivial Anderson insulator. Here, we introduce the anomalous levitation and pair annihilation, a process unique to periodically-driven, or Floquet systems. Due to the periodicity of the quasienergy spectrum, we find it is possible for the topological gap to increase as a function of disorder strength. Thus, after all bulk states have localized, the system remains topologically nontrivial, forming an anomalous Floquet Anderson insulator (AFAI) phase. We show a concrete example for this process, adding disorder via onsite potential "kicks" to a Chern insulator model. By changing the period between kicks, we can tune which type of (conventional or anomalous) levitation-and-annihilation occurs in the system. We expect our results to be applicable to generic Floquet topological systems and to provide an accessible way to realize AFAIs experimentally, without the need for multi-step driving schemes.
description: 5+4 pages, 5+5 figures, v2: this is the final, published version
Orbital dynamics of highly probable but rare Orionid outbursts possibly observed by the ancient Maya
Creators: name: Kinsman, J. H.
name: Asher, D. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: Using orbital integrations of particles ejected from Comet Halley's passages between 1404 BC and 240 BC, the authors investigate possible outbursts of the Orionids (twin shower of the Eta Aquariids) that may have been observed in the western hemisphere. In an earlier orbital integration study the authors determined there was a high probability linking probable outbursts of the Eta Aquariid meteor shower with certain events recorded in inscriptions during the Maya Classic Period, AD 250-900. This prior examination was the first scientific inquiry of its kind into ancient meteor outbursts possibly recorded in the western hemisphere where previously no pre-Columbian observations had existed. In the current paper the aim is to describe orbital dynamics of rare but probable Orionid outbursts that would have occurred on or near applicable dates recorded in the Classic Maya inscriptions. Specifically, significant probable outbursts are found in AD 417 and 585 out of 30 possible target years. The driving mechanisms for outbursts in those two years are Jovian 1:6 and 1:7 mean motion resonances acting to maintain compact structures within the Orionid stream for over 1 kyr. Furthermore, an Orionid outburst in AD 585 recorded by China is confirmed.
description: Accepted 2020 January 17. Received 2020 January 3; in original form 2019 May 30. 9 pages, 4 figures
Off-diagonal hyperfine interaction between the 6p1/2 and 6p3/2 levels in 133Cs
Creators: name: Johnson, W. R.
name: Ho, H. C.
name: Tanner, Carol E.
name: Derevianko, Andrei
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The off-diagonal hyperfine interaction between the 6p1/2 and 6p3/2 states in 133Cs is evaluated in third-order MBPT giving 37.3 Hz and 48.3 Hz, respectively, for second-order energies of the 6p3/2 F=3 and F=4 levels. This result is a factor of 10 smaller than one obtained from an uncorrelated first-order Dirac-Hartree-Fock calculation and used in the analysis of a recent high-precision (< 2 kHz) measurement of the 6p3/2 hyperfine structure [Gerginov et al. Phys. Rev. Lett. 91, 72301 (2003)]. The factor of 10 difference has negligible effect on the conclusions of the recent experiment but will become important for experiments carried out at a precision of better than 1 kHz.
Simulation of Drosophila Circadian Oscillations, Mutations, and Light Responses by a Model with VRI, PDP-1, and CLK
Creators: name: Smolen, Paul
name: Hardin, Paul E.
name: Lo, Brian S.
name: Baxter, Douglas A.
name: Byrne, John H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: A model of Drosophila circadian rhythm generation was developed to represent feedback loops based on transcriptional regulation of per, Clk (dclock), Pdp-1, and vri (vrille). The model postulates that histone acetylation kinetics make transcriptional activation a nonlinear function of [CLK]. Such a nonlinearity is essential to simulate robust circadian oscillations of transcription in our model and in previous models. Simulations suggest two positive feedback loops involving Clk are not essential for oscillations, because oscillations of [PER] were preserved when Clk, vri, or Pdp-1 expression was fixed. Eliminating the negative feedback loop in which PER represses per expression abolished oscillations. Simulations of per or Clk null mutations and of vri, Clk, or Pdp-1 heterozygous null mutations altered model behavior in ways similar to experimental data. The model simulated a photic phase-response curve resembling experimental curves, and oscillations entrained to simulated light-dark cycles. The model makes experimental predictions, some of which could be tested in transgenic Drosophila.
description: Accepted to Biophysical Journal, 1/16/04. Single PDF file, 7 figures at end
Milk Thistle Seed Extract Favorably Affects Lactation and Development of Mammary Gland in Female Rats
Creators: name: Mohammad, Bassim
name: Alzamely, Hayder
name: Garrawi, Firas K Al
name: Al-Aubaidy, Hayder
Publisher: name: La Trobe
Year: 2022
Subjects: Uncategorized

description: No description supplied
Can Indonesia Gain from Log Export Barriers?
Creators: name: Arunanondchai, May
name: Arunanondchai, May
Publisher: name: Unknown
Year: 2002
Subjects: subject: International Development
subject: International Relations/Trade
subject: Resource /Energy Economics and Policy
subject: Trade with imperfect competition
subject: Vertical integration
subject: Forest products

description: We use a modelof sequentialduopoly to examine the effect of verticalownership structure on firms’ outputs and profit shares in the internationalmarket for raw and processed tropicaltimber products. The modelprovides insights that can be applied to the Indonesian logging and plywood industry; shedding light on the appropriate policy responses. We find that when industries are integrated, the government should subsidise both exports. Thus, despite log and plywood being strategic substitutes, log export barriers make Indonesia worse off. When industries are separated, however, plywood exports should be subsidised but the optimal trade policy on log exports depends on two effects. If the commitment failure effect (as in Brander and Spencer (1985)) dominates then log exports should be subsidised, however, if the negative cross-industry effect dominates then log exports should be taxed.
Essential role of biofilms in Alzheimer's Disease
Creators: name: Allen, Herbert
Publisher: name: figshare
Year: 2020
Subjects: subject: 110308 Geriatrics and Gerontology
subject: FOS: Clinical medicine

description: Spirochetes make biofilms and the biofilms are integral in the formation and accumulation of amyloid beta and phosphorylated tau.