Miracle-dz/UniFAR-FTUs huggingface dataset:
An Accelerated 3D Navier-Stokes Solver for Flows in Turbomachines

A new three-dimensional Navier-Stokes solver for flows in turbomachines has been developed. The new solver is based on the latest version of the Denton codes, but has been implemented to run on Graphics Processing Units (GPUs) instead of the traditional Central Processing Unit (CPU). The change in processor enables an order-of-magnitude reduction in run-time due to the higher performance of the GPU. Scaling results for a 16 node GPU cluster are also presented, showing almost linear scaling for typical turbomachinery cases. For validation purposes, a test case consisting of a three-stage turbine with complete hub and casing leakage paths is described. Good agreement is obtained with previously published experimental results. The simulation runs in less than 10 minutes on a cluster with four GPUs.Copyright © 2009 by ASME
No direct effects of resistant soybean cultiva IAC-24 on Podisus nigrispinus (Heteroptera: Pentatomidae)

The parameters of survival, development and reproduction of Podisus nigrispinus Dallas, 1851 (Heteroptera: Pentatomidae) may be affected by feeding on soybean ( Glycine max [L.] Merr.; Fabaceae) cultivars. The direct effect was evaluated of the insect-resistant soybean 'IAC-24' (insect-susceptible soybean 'UFVS-2006' + pupae of Tenebrio molitor L., 1758 [Coleoptera: Tenebrionidae] versus 'IAC-24' plants + pupae of T. molitor) in the nymph and adult stages of the predator P. nigrispinus. The duration of the nymph stage was similar between treatments, but 'IAC-24' reduced the duration of the IV instar of this predator. The survival of P. nigrispinus was similar between treatments in the instars I, II, IV and V and in the nymph stage, but the survival of the III instar was longer with 'IAC-24' plants. The body mass of nymphs in the first day of the III, IV, and V instars after ecdysis and newly emerged adults; reproductive characteristics (periods of pre-oviposition, oviposition, post-oviposition and egg incubation; egg laying interval, number of egg masses per female, nymphs per female, nymphs per egg mass and percentage of nymphs hatching) and life span of males and females of P. nigrispinus were similar between treatments. The resistant soybean 'IAC-24' showed no direct deleterious effects on P. nigrispinus, which implies its innocuity and compatibility with this predator.
Returns to skills, incentives to study and students' performance

giovedi 30 giugno 2005 Abstract. Students' learning effort is crucial in human capital accumulation. Since skills cannot be accurately observed by future employers, students may have incentives not to work hard if their labour market outcomes are based more on credentials and on the belonging to informal networks rather than on effective skills. In a principal-agent framework, we analyze the role of a policymaker who aims to maximize a social welfare function defining a minimum standard that students must meet to attain a certain educational degree. If the policy-maker takes into account the effective productivity of skills, in presence of highly distorted labour markets he will set a high standard to encourage individuals' learning effort and in maintaining high quality in the educational system. Nevertheless, we show that if standards are defined by subjects who consider exclusively individuals' returns to education (for example, heads of schools), there may be a perverse incentive to set low standard in badly functioning labour markets, furthering the tendency to reduce effective investments in human capital. JEL: I21; J31; D82.
The seaweeds Fucus vesiculosus and Ascophyllum nodosum are significant contributors to coastal iodine emissions

Abstract. Based on the results of a pilot study in 2007, which found high mixing ratios of molecular iodine (I2) above the intertidal macroalgae (seaweed) beds at Mweenish Bay (Ireland), we extended the study to nine different locations in the vicinity of Mace Head Atmospheric Research Station on the west coast of Ireland during a field campaign in 2009. The mean values of I2 mixing ratio found above the macroalgae beds at nine different locations ranged from 104 to 393 ppt, implying a high source strength of I2. Such mixing ratios are sufficient to result in photochemically driven coastal new-particle formation events. Mixing ratios above the Ascophyllum nodosum and Fucus vesiculosus beds increased with exposure time: after 6 h exposure to ambient air the mixing ratios were one order of magnitude higher than those initially present. This contrasts with the emission characteristics of Laminaria digitata, where most I2 was emitted within the first half hour of exposure. Discrete in situ measurements (offline) of I2 emission from ambient air-exposed chamber experiments of L. digitata, A. nodosum and F. vesiculosus substantially supported the field observations. Further online and time-resolved measurements of the I2 emission from O3-exposed macroalgal experiments in a chamber confirmed the distinct I2 emission characteristics of A. nodosum and F. vesiculosus compared to those of L. digitata. The emission rates of A. nodosum and F. vesiculosus were comparable to or even higher than L. digitata after the initial exposure period of ~20–30 min. We suggest that A. nodosum and F. vesiculosus may provide an important source of photolabile iodine in the coastal boundary layer and that their impact on photochemistry and coastal new-particle formation should be reevaluated in light of their longer exposure at low tide and their widespread distribution.
A note on self-dual cones in Hilbert spaces

A result of Tam says that if a nonnegative matrix A has a nonnegative generalized inverse X (that is, X satisfies the equation AXA = A) then, A(R+) = R(A) ∩ R+ and are simplicial (the image of the nonnegative orthant under an invertible linear map). Although in general, a simplicial cone need not be self-dual, there is another inner product with respect to which it is self-dual. The aim of this note to bring out an analoge of this in infinite dimensional separable Hilbert spaces, although there is no notion of simpliciality in such spaces.
Preparation and biochemical characterisation of nanoconjugates of functionalized carbon nanotubes and cytochrome c

Objective(s): The present work deals with the preparation of nanobioconjugates based on the immobilization of cytochrome c (cyt c) on functionalized multi-wall carbon nanotubes (f-MWCNTs). The effect of the nanosupport and the immobilization procedure on the biochemical and structural characteristics of the immobilized protein was investigated. Methods: The MWCNTs were functionalized to provide alkyl chains with different length and terminal functional groups on their surface. The immobilization of cyt c was achieved through physical adsorption and covalent binding. Cyt-c-based nanoconjugates were characterized in terms of peroxidase activity and stability of protein, while UV-visible spectroscopy was used to investigate the structural characteristics of the immobilized protein. Results: The loading of cyt c on f-MWCNTs was effectively achieved, with immobilization yields reaching up to 77%. The peroxidase activity of cyt c was higher in the case of non covalent immobilization compared to that of covalent procedure. Immobilized cyt c exhibited higher thermal stability than the native protein after 24 h incubation at 40oC, while it preserved up to 100% of its initial activity after incubation in the presence of a denaturing agent such as H2O2. No significant changes in the heme microenvironment of cyt c were observed in the presence of f-MWCNTs. Conclusions: This study has demonstrated that f-MWCNTs are effective supports for the immobilization of cyt c, providing a universally applicable platform for the development of bionanoconjugates with potential use in a wide variety of fields in nanobiocatalysis, biosensing and nanomedicine.
Effect of Citric Acid on Growth and Red Coloration of Red Porgy (Pagrus pagrus)

This study investigates the effect of dietary citric acid supplementation on the growth and red coloration of red porgy (Pagrus pagrus). Red porgy (~0.5 g) were fed one of four diets: (a) an unsupplemented control, (b) a diet containing astaxanthin at 0.06 g/kg, (c) a diet containing citric acid at 30 g/kg, or (d) a diet containing both astaxanthin at 0.06 g/kg and citric acid at 30 g/kg. After two months, fish reached ~6 g with no differences in growth between groups. Astaxanthin increased the total carotenoid concentration in the skin from 3.16 to 45.15 μg/g in fish fed the astaxanthin-supplemented diet and from 2.61 to 50.07 μg/g in fish fed the diet supplemented by both astaxanthin and citric acid, producing a distinctive red skin color. Diet composition did not affect the melanin concentration of the skin, which ranged 57.60-68.18 μg/g and did not differ between groups. Dietary supplementation of citric acid did not affect growth or coloration in red porgy, thus alternative means of administering citric acid should be sought, for example, adding citric acid to the rearing water or injecting it into the fish body. The IJA appears exclusively as a peer-reviewed on-line open-access journal at http://www.siamb. org.il. To read papers free of charge, please register online at registration form. Sale of IJA papers is strictly forbidden.
Incidence Profile of Leukemias, Lymphomas, Central Nervous System Tumors and Soft-Tissue Sarcomas in Children and Adolescents in a Brazilian City

Objectives: To identify the profile of incidence of Leukemias, myeloproliferative diseases, and myelodysplastic diseases; Lymphomas and reticuloendothelial neoplasms; CNS and miscellaneous intracranial and intraspinal neoplasms and Soft tissue and other extraosseous sarcomas, in children and adolescents (aged ≤ 19) living in Campinas, Sao Paulo, Brazil. Methods: This is an epidemiological study with data from medical records between 1996 and 2005, using the form of Population-based Cancer Registry of Campinas-SP, Brazil. Differences were identified among the groups and the spatial cluster analysis was conducted. Results: The Leukemia cases were more representative (50%) than the others, followed by Lymphomas (22%), CNS (21%) and Soft Tissue (7%). In terms of sociodemographic variables, gender (p=0.03) and age (p<0.01) were significantly associated with cancer in the study groups. According to the spatial distribution of the cases, the Health Districts had a non-homogeneous distribution. Conclusions: The distribution and characteristics of the diagnoses of the study groups were similar to the results of other studies on the subject. The incidence profile can help increase awareness of the occurrences and improve the healthcare planning.
Dissipativity-Based Nonlinear Control for Plantwide Stability

Abstract This paper presents a nonlinear process control approach that may potentially be used for large-scale (plantwide) chemical process systems. The proposed nonlinear control law is designed to shape the dissipativity of each closed-loop subsystem. Thereafter, the dissipative subsystems are interconnected according to the network topology and the control law may be tuned to satisfy the plantwide stability. The proposed approach is illustrated by an example of dual nonlinear level control problem.
The concept of terroir in viticulture

Abstract Terroir is a highly important concept in viticulture because it relates the sensory attributes of wine to the environmental conditions in which the grapes are grown. Quality hierarchy and wine style may, to a considerable extent, be explained by terroir. However, terroir is difficult to study on a scientific basis because many factors are involved, including climate, soil, cultivar and human practices, and these factors interact. The best expression of terroir is achieved when the precocity of the grapevine variety is suited to the local climatic conditions in such a way that full ripeness is reached by the end of the growing season. For the production of high quality red wines, environmental conditions should induce moderate vine vigour, either through moderate water deficit stress or through low nitrogen supply. These conditions are most frequently met on shallow or stony soils, in moderately dry climates. Regular but not excessive vine water and nitrogen supplies are needed to produce high quality white wines. However, great terroir emerges only when socio-economic conditions are favourable to the establishment of quality-orientated wine production.
S16-3 Parasite defence in birds: the role of volatiles

1 hgwinner@. erl.ornithol. mpg.de Abstract European starlings (Sturnus vulgaris) mix fresh herbs, preferably species rich in volatile compounds, into their dry nest material. By investigating air samples from starling nest boxes, we found that nestlings and their parasites encounter volatile compounds such as sabinene, myrcene, limonene, phelandrene and ocimene, some of them with medicinal properties. We compared mite load and nestling condition in experimental nests with and without herbs. Herbs had no effect on the quantity of nest-dwelling ectoparasites, but a significantly inhibiting effect on bacterial growth in late nests. There was also a tendency for mosquitoes to visit nests containing herbs less often than nests without herbs. Chicks that fledged from herb nests with higher body mass had more red blood cells and differed in some immunological parameters from controls. Herb chicks also had more basophil leucocytes, but fewer lymphocytes than nestlings from nests without herbs. More yearlings from herb nests were identified and showed interest in nest boxes in their first year as adults. The better condition of herb chicks may have been due to plant compounds that stimulate elements of the immune system to help nestlings cope better with harmful impacts from parasites and other stressors. Apart from their effects on parasites and nestlings, volatile compounds in herbs that are carried into the nests by males may also play a role in mate attraction.
Vegetation history around Yongneup moor at Mt. Daeamsan, Korea

A pollen analytical study of sediment sequences collected from Yongneup moor (sampling point: 38°12′57.4″ N, 120°7′30.2″ E) was conducted to understand the vegetation history in the mountainous region of the central Korean peninsula. Carbon dating was carried out to measure five successive samples obtained from the bottom at a depth of 180 cm to the surface. The Yongneup moor sediment revealed four main local pollen zones; that is, four past vegetation phases as follows: Local pollen zone I: Quercus-Pinus zone; estimated age, 5,900-4,800 calibrated years (cal) before present (BP); vegetation type, cool-temperate central/montane deciduous broad-leaved forest. Local pollen zone II: Pinus-Abies-Quercus zone; estimated age, 4,800-3,400 cal BP; vegetation type, cool-temperate northern/alti-montane mixed coniferous and deciduous broad-leaved forest. Local pollen zone III: Quercus-Pinus-Abies zone; estimated age, 3,400-400 cal BP; vegetation type: cool-temperate central/montane deciduous broad-leaved forest. Local pollen zone IV: Pinus-Quercus zone; estimated age, 400-present cal BP; vegetation type, cool-temperate central/montane mixed deciduous broad-leaved and coniferous forest. It was confirmed that subalpine coniferous forests had expanded to the mountainous region of the central Korean peninsula during the period from 4,800-3,400 cal BP and thereafter deciduous forests dominated by Q. mongolica were established. Notably, secondary forests dominated by P. densiflora developed in the lower part of the mountainous region of the central Korean peninsula about 400 cal BP due to human interference.
Phylogenetic and cladistic analyses of the enigmatic genera Bituminaria and Cullen (Fabaceae) in Turkey

Three taxa of the genus Psoralea L. growing naturally in Turkey and the outgroup taxa belonging to the closest genera Vicia L. , Cicer L. , and Astragalus L. were subjected to molecular and quantitative morphological analyses in order to characterize their phylogenetic relationships. Both the taxonomical and the molecular characteristics of the tribes Psoraleeae (Bituminaria Heist. ex Fabr., Cullen Medik.), Vicieae (Vicia), Astragalae (Astragalus), and Cicereae (Cicer) were clearly revealed for the first time with the inter- simple sequence repeat (ISSR) method. The phylogenetic relationships were determined with 253 ISSR band scores and 125 quantitative morphological character measurements. The numerical and molecular data sets were analyzed with NTSYSpc and Minitab software. Based on these data, the current circumscription of the genus Psoralea was reevaluated and compared with outgroups in Turkey. Consequently, the closely related genera of Bituminaria and Cullen clearly occur in Turkey instead of the genus Psoralea.
The Microfoundations of Entrepreneurial Cognition Research: Toward an Integrative Approach

In this monograph, we adopt a microfoundations-type approach to understanding the present state of the field of entrepreneurial cognition research. The notion of microfoundations - which link micro concepts to macro concepts [Barney and Felin, 2013] - is increasingly being utilized to unbundle compound processes, and thereby to generate improved explanations in social science research. From its roots in psychology, we selectively review and trace the progress of the field of entrepreneurial cognition research over time, and we make a case for socially situated cognition as a new and useful framework in which the microfoundations of some of the emerging and more dynamic approaches to the study of entrepreneurs' thinking can be understood and organized. We also outline some productive directions for future entrepreneurial cognition research. We believe that the review of these earlier roots enables the reader to more fully appreciate how the development of social cognition research intertwines with other fields in influencing the current state of entrepreneurial cognition research.
Effects of Soil Stiffness on Seismic Response of Buildings Considering Soil-Pile-Structure Interaction

In this study, a fifteen-storey moment resisting building sitting on an end-bearing pile foundation in soil socketed in rock is selected in conjunction with four values of shear wave velocity. Effects of corresponding shear strength are studied through numerical modelling using finite difference software FLAC3D. Fully nonlinear dynamic analysis under the influence of Northridge earthquake is performed. The results indicate that soil plasticity should be taken into account while conducting dynamic analysis considering soil-pile-structure interaction. However, the dynamic response of the structure regarding base shear, foundation slab rotation, pile lateral deflection and structure lateral deflection is sensitive to the effect of shear strength with the increase in shear wave velocity and corresponding shear modulus. Also, the results show that the dynamic response of structures sitting on end-bearing pile foundations depends not only on base shear attracted by the superstructure but also on the foundation slab rotation. Therefore, to perform realistic seismic analysis and to conduct reasonable seismic design of mid-rise building resting on end-bearing pile foundations, the consideration of foundation slab rotation is essential. RÉSUMÉ: Cet article présente l’étude d’un bâtiment de quinze étages fondé sur pieux chargés en pointe dans des argilles molles soumis à quatre valeurs de vitesse de propagation des ondes de cisailement. Pour chaque vitesse de propagation, les effets sur la résistance au cisailement du sol sont étudiés par modélisation numérique en utilisant le logiciel d’analyse par différence finie FLAC3D. Une analyse dynamique non linéaire est réalisée en considérant les enregistrements du séisme Northridge. Les résultats indiquent que la résistance au cisaillement du sol doit être prise en compte lors de l'analyse dynamique en tenant compte de l'interaction sol/pieu/structure. Cependant, la réponse dynamique des structures en ce qui concerne la résistance au cisaillement à l’interface soil/structure, la rotation du casque de pieu, la déformation latérale du pieu et la déformation latérale de la structure est sensible aux effets de la résistance au cisaillement du sol avec l'augmentation de la vitesse de propagation des ondes de cisaillement et du module de cisaillement correspondant. En outre, les résultats montrent que la réponse dynamique des structures reposant sur des pieux chargés en pointe dépend non seulement de la résistance au cisaillement mobilisé à l’interface soil/structure mais aussi de la rotation du casque de pieu. Par conséquent, pour effectuer une analyse sismique réaliste et pour conduire une conception sismique raisonnable d'un bâtiment de moyenne hauteur reposant sur des pieux chargés en pointe, considérer la rotation du casque de pieu est essentielle.
Robustness of Logit Analysis: Unobserved Heterogeneity and Mis-specified Disturbances*

In probit and logit models, the "b" coefficients vary inversely with the variance of the disturbances. The omission of a relevant orthogonal regressor leads to increased unobserved heterogeneity, and this depresses the "b" coefficients of the remaining regressors towards zero. For the probit model, Wooldridge ("Econometric Analysis of Cross Section and Panel Data", MIT Press, Cambridge, MA, 2002) has shown that this bias does not carry over to the "effect" of these regressors on the outcome. We find by simulations that this also holds for the logit model, even when omitting a variable leads to severe mis-specification of the disturbance. More simulations show that logit analysis is quite insensitive to pure mis-specification of the disturbance as such. Copyright Blackwell Publishing Ltd and the Department of Economics, University of Oxford 2007.
Mathematical and Computational Models in Tumor Immunology

The immune system is able to protect the host from tumor onset, and immune de- ficiencies are accompanied by an increased risk of cancer. Immunology is one of the fields in biology where the role of computational and mathematical modeling and analysis were recognized the earliest, beginning from 60s of the last century. We introduce the two most common meth- ods in simulating the competition among the immune system, cancers and tumor immunology strategies: differential equations and rule-based models. Several specific implementations are pre- sented, describing in details how they work and how they advance or contribute the field of tumor immunology.
The ecology of the mud crab (Scylla serrata): their colonisation of estuaries and role as scavengers in ecosystem processes

Scylla serrata is a portunid crab which can attain a weight of over 2 kg and a carapace width exceeding 250 mm. It is distributed throughout the Indo-West Pacific extending down the east coast of Africa, and both the east and west coasts of Australia. In Australia it is commonly known as the mud crab because it occurs within muddy, mangrove-lined bays and estuaries. Mud crabs are generalist predators eating most small, slow moving animals which they can catch, but they are also vigorous scavengers. Being scavengers, they are readily caught in baited traps set by commercial and recreational fishers, and are the stock for these popular fisheries. Female crabs spawn offshore and larvae spend a period in the plankton where they develop into postlarvae or megalopae.