Miracle-dz/UniFAR-FTUs huggingface dataset:
Application of complex networks to the study of healthcare management data : a data mining perspective )

Healthcare management is one of the first-class issues in any modern society. At the same time, new data mining techniques and tools are hatching as a response to an ever growing number of so-called big data applications; in particular, complex networks and network science are consolidating as the tool of choice for the analysis of many non-relational unstructured data sources. In this work we put in contact these two worlds by analysing the characteristics of a diagnoses network emerged from national public healthcare system data. Different methodologies to extract and transform the data are explored, and several results evidencing interesting patterns in the data are presented. Additionally, a complementary analysis from the point of view of Bayesian networks is as well proposed, establishing a comparative between both approaches.
Variational Approach Applied to Study the Lifting of a Non-Newtonian Fluid on a Vertically Moving Belt

This paper provides an investigation regarding the modeling and analysis of the thin film flow of a non-Newtonian Williamson fluid on a vertically moving belt. The governing nonlinear differential equation is first integrated analytically and then solved by using the Variational Iteration Method (VIM). The results of the present method are also compared with those obtained by the Adomian Decomposition Method (ADM) and a very good agreement is observed. This comparison reveals that VIM may be considered as an efficient alternative method for solving nonlinear problems arising in the area of fluid mechanics. Expressions for some important physical quantities such as volume flux, average velocity, the belt speed for the lifting of non-Newtonian fluid are also derived. doi: 10.14456/WJST.2014. 74
Domain structures and magnetic anisotropy of TbFe 12 x Ti x single crystals

The domain structures of TbFe12 xTix (x 1⁄4 0:85, 1.0, and 1.3) single crystals in different crystal planes have been investigated using magnetic force microscopy. The patterns with large contrast are observed in (110) and (10 0) planes for the samples of x 1⁄4 0:85, while the slight contrast is detected in (0 0 1) plane, indicating the anisotropy is easy plane. By increasing x to 1.0 and 1.3, the domain structures change dramatically in (110), (10 0), and (0 0 1) planes. This demonstrates that the anisotropy transforms from easy plane to easy axis, which is related to spin reorientation and the strong magnetocrystalline anisotropy in the basal plane. The calculation of the domain patterns according to the Hubert model shows that the domains are the branching outcome of the basic domains. & 2008 Elsevier B.V. All rights reserved.
The Effect of Synthesis Conditions on the Performance of Large Temperature Difference Retarder

In view of the ability of present oil well cement retarder is poor to adapt to the large temperature difference, using 2-acrylamido-2-methyl propane sulfonic acid (AMPS) and Itaconic Acid (IA), a new retarder AMPS/IA (AI) which could solve the problem of the large temperature difference was synthesized by free radical aqueous solution copolymerization. The effect of reaction conditions on the properties of retarder was studied. The results indicate that the monomer ratio and the pH value are more important than the monomer concentration, temperature and initiator dosage as impact factor for the performance of AI. The optimal AI (OAI) was obtained under the optimum reaction conditions: mole ratio of AMPS/IA = 73/27, monomer concentration = 40%, amount of (by weight of monomer) initiator = 2%, pH value = 2 and temperature = 60°C. Compared with the ordinary retarder, the OAI has merits as follows: excellent thermal resistant ability, less dosage, suitable for large temperature difference. The thickening time of the slurry with 1.5% OAI is 313 min at 180°C; the setting time is 72 h at 50°C, which indicates the OAI could meet the temperature range from 50°C to 180°C. In short, the OAI has excellent ability to adapt to the large temperature difference.
Development of a 385-500 GHz Orthomode Transducer (OMT)

Abstract —We report on the development of an orthom ode transducer (OMT) for ALMA Band 8 (385-500 GHz). The OMT is a scaled model of that of ALMA Band 4 (125-163 GHz), which has a Bφifot junction and a double ridge. The transmission loss of the OMT at 4 K was derived to be 0.4-0.5 dB from noise measurements with an SIS mixer. The polarization isolation was measured to be la rger t han 20 dB from quasioptical measurements. For electromagnetic d esign, effe cts of mechanical errors have been studied and then a robust design with allowable mechanical errors of 10 μm has been obtained. I. I NTRODUCTION An orthomode transducer (OMT) is a passive waveguide device that separates a received signal by a feed horn into its two orthogonal linearly polarized components. For submillimeter receivers, the conventional way to separate orthogonal polarizations is to use a wire grid, which is a quasioptical device that consists of free-standing wires. Optical systems of a dual polarization receiver with a wire grid or an OMT are shown in Fig.1. The merits and demerits of an OMT compared with a wire grid are the following: Merits 1) Optical system of a receiver can be quite simple and compact. An ellipsoidal mirror, a corrugated horn, and a wire grid can be removed from that with a wire grid. 2) There is no beam squint between two polarizations. 3) A problem of the life time of a wire grid can be solved. Demerits 1) A Fabrication is relatively difficult. 2) The Joule loss of the waveguide is added, although an ideal wire grid has almost no loss. These demerits can be solved if we can design mechanical robust OMT, and if waveguide is gold-plated. The transmission loss at 4 K is calculated as 0.5 dB/ 25 mm at 385 GHz when the OMT is cooled down to 4 K. We assume the conductivity of gold film at 4 K is 1.0 x 10
Determining Powdery Mildew ( Podosphaeraaphanis var . aphanis ) Risk Areas for Wild Strawberry ( Fragariavesca ) in Turkey by Geographic Information Systems

Powdery mildew caused by Podosphaeraaphanis var. aphanis mostly infects the wild and cultivated strawberries in Turkey. The disease affects leaves, stems and fruits. Mycelia of the fungi inhibit the photosynthesis and nutrients uptake from the host cells. This reduces yield, quality, and market value of the fruit. In Turkey, intense strawberry cultivations in Mediterranean and Aegean regions are mainly influenced by contamination levels of nursery plants. However, scattered wild strawberry cultivations (Fragaria vesca) in Marmara and Black Sea regions are mainly affected by environmental conditions, particularly by the climate. Determining spatial distribution of powdery mildew of wild strawberry in Turkey is important for plant protection experts, producers, and breeders. In this study, powdery mildew risk areas for wild strawberry in Turkey were spatially analyzed and mapped in geographic information systems (GIS). In analyzing and mapping process, climatic raster maps and optimal climatic requirements of the disease were utilized. According to the produced raster maps, disease risk areas concentrated in the Black Sea and Marmara geographic regions of Turkey between May and October. Powdery mildew risk areas covered maximum area (3141.18 km 2 ) in October, and these areas were detected in Istanbul (2790.92 km 2 ), Sinop (215.0 km 2 ), and Giresun (155.26 km 2 ) provinces, respectively. Accuracy assessment of each risk map was performed by using geo-referenced field data collected between May and October in 2015. Accuracy changed between 75.68 % and 83.33 % in monthly basis, and overall accuracy was determined as 80.00 %. The results of this study supplied a good and reliable basis to control the disease.
OPTIMAL CHARGING PROTOCOLS FOR LIFEPO 4 BATTERIES VIA DETERMINISTIC DYNAMIC PROGRAMMING A Thesis in Mechanical Engineering by Kelsey

This thesis developed a single state equivalent circuit model of a Lithium Iron Nanophosphate battery and applied the model with optimal control strategies to explore an optimal charging problem. Charging and discharging open-circuit potentials, resistances, and an overall battery capacity was estimated experimentally. The model was verified against experimental data and at low charge rates the model matches experimental data <1% error. The model was used to develop optimal charging schedules in order to optimize energy throughput in a battery. The results were compared to a simple single charge rate, and two experimental trajectories. The results indicate that optimizing for energy throughput may be a trivial objective function for the given constraints. Nevertheless, the results suggest three primary trends (1.) Charging trajectories begin at low charge rates, (2.) Optimized trajectories indicate that pulses of current should be added at 30% and 70% SoC, (3.) Optimal charging protocols differ based on initial state of charge. Future work intends to use this framework to explore a physics based model with more rigorous constraints.
Photon Blockade with Memory and Slow Light using a Single Atom in an Optical Cavity

This thesis reports on a system which merges both single-atom cavity quantum electrodynamics (QED) in the strong coupling regime with electromagnetically induced transparency (EIT). It is demonstrated for the first time that such a system shows a photon blockade with memory effect, which is provided by the large coherence of EIT. In particular, this photon blockade can be transformed for the same input field into a two-photon gateway by using an optical control. Moreover, such a system is able to delay light pulses with only a single atom inside the cavity.
Single Species as Indicators of Species Richness and Composition in California Coastal Sage Scrub Birds and Small Mammals

Abstract: Individual species may be useful as indicators of biodiversity if an association exists between the presence of a species and another component of biodiversity. We evaluated 40 species of birds and small mammals, including 11 species of conservation concern, as potential indicators of species richness and species composition in southern California coastal sage scrub habitats. This habitat, which is the target of large‐scale conservation planning, has been greatly reduced by human development and supports many plants and animals of conservation concern. We asked whether there is an association between the presence of a potential indicator species and the species richness and composition of the bird or small‐mammal community in which it is found. We used point counts and live‐trapping to quantify the distribution of birds and small mammals, respectively, at 155 points in 16 sites located in three counties. Of the few species we found associated with species richness, some were associated with higher species richness and others with lower richness, and species of conservation concern were not more frequently associated with species richness than were common species. Ordination analysis revealed a geographic gradient in coastal sage scrub bird and small‐mammal species composition across southern California, and 18 of the species we evaluated were associated with the composition of the bird and small‐mammal community in which they were found. Our results suggest that efforts to conserve bird and small‐mammal biodiversity in coastal sage scrub should not focus exclusively on rare species or on locations with the highest species richness, but instead should focus on a diverse suite of species that are representative of the range of variation in communities found in coastal sage scrub habitats.
CONSEQUENCES OF GRAVITATIONAL WAVE EMISSION FROM SPINNING COMPACT SOURCES A Thesis in Physics

This thesis covers two distinct projects on gravitational wave physics. The first project is a mathematical computation of the gravitational radiation recoil from spinning black hole binary mergers. Radiation recoil speeds have important implications in several astrophysical scenarios such as black hole ejection from globular clusters and dwarf galaxies, hierarchical formation of black holes and more. The inability to directly measure this effect means that theoretical predictions offer the only insight into the size and importance of radiation recoil in the aforementioned astrophysical scenarios. The result found is that spin has the effect of reducing the recoil. Furthermore, the recoil speed is bounded above by roughly 100 km/s. The second project details computing the Fisher information matrix and parameter space search metric for spinning down periodic sources using a simple “Ptolemaic” model of the Earth’s orbit. This is then used to determine the optimal grid for the LIGO periodic sources group to search for unknown pulsar signals. The grid is implemented under the distributed computing project Einstein@Home to search LIGO data for periodic signals from previously unknown objects over the entire sky and frequency band. It has been used by Einstein@Home since summer 2005, for the S4 and now the S5 data runs.
Polyphosphate in Zygomycetes: a cytochemical study

O conteudo de fosforo e a distribuicao, estrutura e localizacao de polifosfato em micelios de Zygomycetes foram avaliados. A citoquimica ultrastrutural foi utilizada com sucesso para identificar a localizacao e a distribuicao de polifosfato em Absidia cylindrospora, Gongronella butleri e Mucor javanicus. Os resultados obtidos revelaram diferencas no padrao de marcacao citoquimica em todas as especies estudadas, bem como, uma marcacao uniforme sobre a superficie celular, correspondendo a parede celular e a membrana citoplasmatica. Produtos de reacao, resultantes da marcacao citoquimica, foram tambem visualizados em estruturas intracelulares e na membrana celular. Estruturas trabeculares, vacuolares, vesiculares, sob a forma de corpos eletron densos e grânulos dispersos no citoplasma foram visualizadas. Adicionalmente, a marcacao citoquimica variou durante as diferentes fases do crescimento celular. O conteudo de fosforo variou ao longo do crescimento celular e do tempo de cultivo, possivelmente devido aos padroes da marcacao citoquimica observados por meio da microscopia eletronica de transmissao. Sao discutidas as funcoes do polifosfato como material de reserva e sua utilizacao.
Global Statistical Description of Temporal Features

In order to describe a temporal image sequence, global information about each separate image and their interrelations is required. Traditional moments, as applied to single images, are designed to capture global information about an object, but are unable to describe temporal changes. In this paper a new global statistical description is proposed - velocity moments, to compress and characterise information from temporal (moving) features. These new velocity moments are based on traditional moment theory. The sequence of images to be characterised is treated as a single entity and the moments aim to describe how different images are interrelated. The new method shows promising recognition properties when used with simple synthetic sequences of moving shapes. Due to their structure they exhibit similar properties to traditional moments when reconstruction is applied using a technique called moment matching. The noise performance of the velocity moments and a set of traditional Hu invariant moments are evaluated. Experimental results show that the velocity moments exhibit a higher resilience to perimeter noise, which suggests that they are better suited to describing real-world, extracted temporal features. As such, a new statistical method has been proposed to statistically describe moving shapes, which combines information about the shape’s structure with information about its movement.
A generalized method for calculating the RMS values of switching power converters

In this paper an analytical method is presented which allows the exact calculation of the RMS value of the state space variables of a switching power converter, whose starting point is the unified state-space representation of the switched networks and the end result is a complete form of equations that include both the DC and RMS values. The method proposed in this paper bridges the gap which exists between the state-space technique and the small signal approximation that departs from the steady state. Ripple values are negligible, compared to the steady state values themselves. A new extended circuit model is proposed whose fixed topology contains all the elements of any DC-to-DC converter, regardless of its detailed configuration, and by which different converters can be characterized in the form of a table conveniently stored in a computer data bank to provide a useful tool for computer aided design and optimization. Finally, examples are given for buck, boost, and buck-boost regulator topologies.
Utilization of border crops to manage aphid colonization and PVY incidence on potato (Solanum tuberosum L.

Olubayo, F. , Nderitu, J., Kibaru, A. , Njeru, R. , Damarisyobera and Kasina, M. 2009. Utilization of border crops to manage aphid colonization and PVY incidence on potato (Solanum tuberosum L.). Int. J. Sustain. Crop Prod. 4(5):19-23. Sorghum (Sorghum bicolor L.), wheat (Triticum aestivum L.), maize (Zea Mays L.), common bean (Phaseolus vulgaris L.) and garden pea (Pisum sativum L.) were tested as border crops for their ability to reduce the number of colonizing aphids and Potato Virus Y (PVY) incidence in seed potatoes (Solanum tuberosum L.). The experiment was done at Tigoni, Central Kenya for two seasons, from 03 May 2002 and from 17 October 2002. Apterae aphids were monitored weekly by picking 15 leaves from 5 randomly selected plants per plot while alate aphids were collected using yellow sticky traps mounted 0.5 m from the ground level at the edge of border crops. Three aphid species were recorded: Aphis gossypii (Glover), Macrosiphum euphorbiae (Thomas) and Myzus persicae (Sulzer). PVY incidence in the inner rows of potatoes surrounded by fallow and the border crops was statistically insignificant (P>0.05) but outer rows in crop-bordered plots had significantly less PVY than outer rows of fallow-bordered plots. The DASELISA test used to confirm presence of PVY showed that the disease had the highest and lowest incidence in fallow and wheat bordered plots, respectively. This study shows that the effective border-crops can be used to manage aphids and PVY disease in potatoes. In addition, since most Kenyan potato growers are low income earners, adoption of border cropping technology can improve immensely the production success of the crop.
Assessing the epistemic quality of democra tic decision-making in terms of adequate support for conclusion s

How can we assess the epistemic quality of democratic decision-making? Sceptics doubt such assessments are possible, as they must rely on controversial substantive standards of truth and rightness. Challenging that scepticism, this paper suggests a procedure-independent standard for assessing the epistemic quality of democratic decision-making by evaluating whether it is adequately supported by reasons. Adequate support for conclusion is a necessary (but insufficient on its own) aspect of epistemic quality for any epistemic justification of democracy, though particularly relevant to theories that emphasize public deliberation. Finding existing methods for measuring the quality of public discourse to fall short, we draw on an epistemological theory of argumentation to provide a more sophisticated approach to evaluating the epistemic quality of
The effect of water on the activation and the CO 2 capture capacities of alkali metal-base

−Alkali metal-based sorbents were prepared by the impregnation either of potassium carbonate (K2CO3) or of sodium carbonate (Na2CO3) on the supports (activated carbon (AC) and Al2O3). The CO2 absorption and regeneration properties were measured in a fixed bed reactor at the low temperature conditions (CO2 absorption at 60 oC and regeneration at 150 oC). The potassium carbonate which was supported on the activated carbon (K2CO3/AC) was clarified as a leading sorbent, of which the total CO2 capture capacity was higher than those of other sorbents. This sorbent was completely regenerated and transformed to its original phase by heating the used sorbent. The activation process before CO2 absorption needed moisture nitrogen containing 1.3-52 vol% H2O for 2 hours either at 60 oC or at 90 oC. The activation process played an important role in CO2 absorption, in order to form new active species defined as K2CO3· 1.5 H2O, by X-ray diffraction. It was suggested that the new active species (K2CO3·1.5H2O) could be formed by drying the K4H2(CO3)3·1.5H2O phase formed after pre-treatment with excess water.
Coexisting localized and itinerant gapless excitations in a quantum spin liquid candidate 1T-TaS$_2$

To reveal the nature of elementary excitations in a quantum spin liquid (QSL), we measured low temperature thermal conductivity and speciﬁc heat of 1T-TaS 2 , a QSL candidate material with frustrated triangular lattice of spin-1/2. The nonzero temperature linear speciﬁc heat coeﬃcient γ and the ﬁnite residual linear term of the thermal conductivity in the zero temperature limit κ 0 /T = κ/T ( T → 0) are clearly resolved. This demonstrates the presence of highly mobile gapless excitations, which is consistent with fractionalized spinon excitations that form a Fermi surface. Remarkably, an external magnetic ﬁeld strongly suppresses γ , whereas it enhances κ 0 /T . This unusual contrasting behavior in the ﬁeld dependence of speciﬁc heat and thermal conductivity can be accounted for by the presence of two types of gapless excitations with itinerant and localized characters, as recently predicted theoretically (I. Kimchi et al. , arXiv:1803.00013 (2018)). This unique feature of 1T-TaS 2 provides new insights into the inﬂuence of quenched disorder on the QSL.
DO ALTERNATE STABLE COMMUNI- TY STATES EXIST IN THE GULF OF MAINE ROCKY INTERTIDAL ZONE? COMMENT

Petraitis and Latham (1999) hypothesized that rockweed stands and barnacle-mussel beds on sheltered rocky shores in New England may represent alternative states and outlined experimental tests suitable to address this question. They advanced this hypothesis because mussels and the seaweed Ascophyllum nodosum are often codominant in sheltered bays (Lewis 1964), and their co-occurrence is not adequately explained by the standard paradigm of consumer control (Menge 1976, Lubchenco and Menge 1978). Petraitis and Latham (1999) also suggested that the development of alternative states depends upon the timing and spatial scale of pulse perturbations. In Petraitis and Dudgeon (1999) and Dudgeon and Petraitis (2001), we reported the results of experiments that show patch size determines the rates of predation and recruitment. Our results provide evidence consistent with the formation of alternative communities on rocky shores of sheltered bays. Bertness et al. (2002) extended and tested our hypothesis about alternative states to other intertidal habitats in New England. They concluded that rockweed stands and barnacle-mussel beds are highly deterministic systems driven by the interaction of water flow, larval input, and consumer pressure. They suggested the type of habitat in which mussels and seaweeds exist as alternative states is likely to be rare. We are delighted that Bertness et al. have conducted experiments to test if mussel beds and rockweed stands are alternative states. We agree that it is crucial to duplicate experiments so that ecologists can move beyond debates of "different ecologies or different ecologists" (Underwood and Fairweather 1986). We applaud such efforts. Our applause, however, is muted because Bertness et al.'s (2002) experiments do not replicate our design as claimed and fall short of being valid tests of alternative stable states. We first compare their design with our design because the problems with their study as a test of alternative stable states arise from the design itself. We then discuss the criteria outlined by Petraitis and Latham (1999) for testing the hypothesis of alternative stable states and the limitations of Bertness et