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Search Results: 1 - 10 of 31021 matches for " Thomas Martello "
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Effects of Water Distribution Uniformity on Waxy Corn (Zea mays L.) Yield: Preliminary Results  [PDF]
Lucia Bortolini, Marco Martello
Journal of Water Resource and Protection (JWARP) , 2014, DOI: 10.4236/jwarp.2014.611098
Abstract:

To face climatic changes, the increase of frequency and severity of droughts, and economic development pressures, Water Management Institutions point at the necessity of water conserving. A sustainable demand-led approach is the most viable option, focusing on achieving more efficient irrigation practices instead of less sustainable expansion of supply. The aim of this work is to investigate on some aspects of the rational water management for the irrigation of corn in order to evaluate the actual possibility of introduction of drip irrigation systems on the Venetian Plain. Trials were carried out on a farm located in Isola della Scala (Verona, Italy) in an area of about 13 ha (12 ha with a drip irrigation system and 1 ha with a solid-set sprinkler system); the effects of the performance of the two systems on waxy corn yield were considered. In particular, water distribution uniformity, water use efficiency, and yield performance of irrigation systems were evaluated. DUlq and CU coefficients for distribution uniformity and IWUe and WUEb indexes for water use efficiency were calculated. To visualize and better analyze the distribution uniformity, the crop yield and the efficiency parameters, ArcGIS 10 (ESRI?) with IDW interpolation were used to create maps. First results show a good water uniformity distribution in the drip irrigation system but only with a careful and proper design of the entire system. As regards the water use efficiency, drip irrigation values are lower than those of sprinkler irrigation (-46% for IWUe and -25% for WUEb), probably due to different irrigation management and water volumes used: in fact, drip irrigation was scheduled every three days, while only supplemental operations were done for sprinkler irrigation. No statistical correlation was found between application rate and yield for both

Os impasses da demanda
Andréa Martello
ágora: Estudos em Teoria Psicanalítica , 2002, DOI: 10.1590/s1516-14982002000200009
Abstract:
Genome Sequencing of West Nile Virus from Human Cases in Greece, 2012
Luisa Barzon,Anna Papa,Monia Pacenti,Elisa Franchin,Enrico Lavezzo,Laura Squarzon,Giulia Masi,Thomas Martello,Theodolinta Testa,Riccardo Cusinato,Giorgio Palù
Viruses , 2013, DOI: 10.3390/v5092311
Abstract: A West Nile Virus (WNV) lineage 2 strain, named Nea Santa-Greece-2010, has been demonstrated to be responsible for the large outbreaks of neuroinvasive disease (WNND) that have been occurring in Greece since 2010, based on sequence similarities of viral isolates identified between 2010–2012. However, knowledge on the evolution of this strain is scarce because only partial WNV genome sequences are available from Greece. The aim of this study was to get the complete genome sequence of WNV from patients with infection. To this aim, plasma and urine samples collected during the 2012 Greek outbreak were retrospectively investigated. Full WNV genome sequence was obtained from a patient with WNND. The genome had 99.7% sequence identity to Nea Santa, higher than to other related WNV lineage 2 strains, and five amino acid changes apparently not relevant for viral pathogenicity or fitness. In addition, infection by WNV lineage 2 was confirmed in additional nine patients with WNND; in three of them the infection with WNV Nea Santa was demonstrated by sequencing. In conclusion, this study characterized for the first time a WNV full genome from a patient with WNND from Greece, demonstrated the persistence of the Nea Santa strain, and suggested that the virus might have locally evolved.
Large Human Outbreak of West Nile Virus Infection in North-Eastern Italy in 2012
Luisa Barzon,Monia Pacenti,Elisa Franchin,Silvana Pagni,Enrico Lavezzo,Laura Squarzon,Thomas Martello,Francesca Russo,Loredana Nicoletti,Giovanni Rezza,Concetta Castilletti,Maria Rosaria Capobianchi,Pasquale Salcuni,Margherita Cattai,Riccardo Cusinato,Giorgio Palù
Viruses , 2013, DOI: 10.3390/v5112825
Abstract: Human cases of West Nile virus (WNV) disease have been reported in Italy since 2008. So far, most cases have been identified in north-eastern Italy, where, in 2012, the largest outbreak of WNV infection ever recorded in Italy occurred. Most cases of the 2012 outbreak were identified in the Veneto region, where a special surveillance plan for West Nile fever was in place. In this outbreak, 25 cases of West Nile neuroinvasive disease and 17 cases of fever were confirmed. In addition, 14 WNV RNA-positive blood donors were identified by screening of blood and organ donations and two cases of asymptomatic infection were diagnosed by active surveillance of subjects at risk of WNV exposure. Two cases of death due to WNND were reported. Molecular testing demonstrated the presence of WNV lineage 1 in all WNV RNA-positive patients and, in 15 cases, infection by the novel Livenza strain was ascertained. Surveillance in other Italian regions notified one case of neuroinvasive disease in the south of Italy and two cases in Sardinia. Integrated surveillance for WNV infection remains a public health priority in Italy and vector control activities have been strengthened in areas of WNV circulation.
The Neural Correlates of Abstract and Concrete Words: Evidence from Brain-Damaged Patients
Costanza Papagno,Giorgia Martello,Giulia Mattavelli
Brain Sciences , 2013, DOI: 10.3390/brainsci3031229
Abstract: Neuropsychological and activation studies on the neural correlates of abstract and concrete words have produced contrasting results. The present study explores the anatomical substrates of abstract/concrete words in 22 brain-damaged patients with a single vascular lesion either in the right or left hemisphere. One hundred and twenty (60 concrete and 60 abstract) noun triplets were used for a semantic similarity judgment task. We found a significant interaction in word type × group since left temporal brain-damaged patients performed significantly better with concrete than abstract words. Lesion mapping of patients with predominant temporal damage showed that the left superior and middle temporal gyri and the insula were the areas of major overlapping, while the anterior portion of the left temporal lobe was generally spared. Errors on abstract words mainly concerned (although at a non-significant level) semantically associate targets, while in the case of concrete words, coordinate targets were significantly more impaired than associate ones. Our results suggest that the left superior and middle temporal gyri and the insula are crucial regions in processing abstract words. They also confirm the hypothesis of a semantic similarity vs. associative organization of concrete and abstract concepts.
Quantitative fidelity of recent freshwater mollusk assemblages from the Touro Passo River, Rio Grande do Sul, Brazil
Martello, Alcemar R.;Kotzian, Carla B.;Sim?es, Marcello G.;
Iheringia. Série Zoologia , 2006, DOI: 10.1590/S0073-47212006000400010
Abstract: this study represents one of the first contributions to the knowledge on the quantitative fidelity of the recent freshwater molluscan assemblages in subtropical rivers. thanatocoenoses and biocoenoses were studied in straight and meandering to braided sectors, in the middle course of the touro passo river, a fourth-order tributary of the uruguay river, located in the westernmost part of the state of rio grande do sul. samplings were carried out through quadrats of 5 m2, five in each sector. a total area of 50 m2 was sampled. samplings were also made in a lentic environment (abandoned meander), with intermittent communication with the touro passo river, aiming to record out-of-habitat shell transportation from the lentic communities to the main river channel. the results show that, despite the frequent oscillation of the water level, the biocoenosis of the touro passo river shows high ecological fidelity and undergoes little influence from the lentic vicinal environments. the taxonomic composition and some features of the structure of communities, especially the dominant species, also reflect some ecological differences between the two main sectors sampled, such as the complexity of habitats in the meandering-sector. regarding the quantitative fidelity, 60% of the species found alive were also found dead and 47.3% of the species found dead were also found alive, at river-scale. however, 72% of the dead individuals belong to species also found alive. this value might be related with the good rank order correlation obtained for live/dead assemblages. consequently, the dominant species of the thanatocoenoses could be used to infer the ecological attributes of the biocoenoses. the values of all the indexes analyzed were very variable in small-scale samplings (quadrat), but were more similar to others registered in previous studies, when they were analyzed in a station and river scale.
Aproveitamento de ma s impróprias para consumo humano para produ o de bioetanol
Guilherme Martello,Claudio Marafon,Vinicius Mazzoneto,André Rech
Tecno-Lógica , 2010,
Abstract: Mesmo sendo uma preferência nacional, uma grande porcentagem de ma é descartada diariamente por diversos fatores, como avan o na podrid o e aspectos n o aceitável para comércio. Como essa fruta apresenta uma concentra o significativa de a úcar, podeser utilizada na produ o de produtos fermentativos, como o vinagre e em especial o etanol. No Brasil, grande aten o vem sendo dadaà produ o de bioetanol como energia renovável, n o apenas aliviando a dependência de petróleo como colaborando para atenuar osefeitos do aquecimento global, dessa forma, este projeto baseia-se em uma avalia o inicial da produ o de bioetanol a partir de ma simpróprias para consumo humano que s o descartadas no comércio de Xanxerê – SC. As porcentagens de bioetanol produzido pelasma s descartadas apresentaram valores equivalentes aos encontrados dentro da literatura, entre 4,2 e 9,2%. Baseando-se nestesresultados, as ma s impróprias para consumo s o ótimas matérias-prima para a produ o de biocombustível – bioetanol, desde que avaliadas seu nível de podrid o anteriormente ao processo. Abstract In spite of a national preference, a bigpercentage of apple is discarded daily by many factors, such asrot and some aspects not acceptable for market. As this fruit presents a significant concentration of sugar, it can be utilizedin the production of fermented products, like vinegar andespecially ethanol. In Brazil, much attention has been given tothe production of bioethanol as renewable energy, not onlyrelieving dependence on oil as working to mitigate the effectsof global warming, by the way, this project is based on aninitial assessment of bioethanol production from improperapples for human consumption that are discarded in the marketof Xanxerê – SC. The percentages of bioetanol produced bythe apples discarded presented equivalent values to them foundinside the literature, between 4.2 and 9.2%. Based on theseresults, the improper apples for consumption are great rawmaterials for the production of biofuel – bioethanol, sinceevaluated his level of rottenness previously on the process.
Cryptococcus infection in a non-HIV patient: a case report
Charmian D. Sittambalam,Heidi Hanna,Justin Martello,Dimitra Mitsani
Journal of Community Hospital Internal Medicine Perspectives , 2012, DOI: 10.3402/jchimp.v2i3.19254
Abstract: Cryptococcal infections are fungal infections most commonly seen in immunocompromised patients. Chronic high-dose steroid may precipitate such an immunocompromised state and thus create susceptibility to fungal infections. Cryptococcus neoformans is a saprophyte usually found in soil contaminated with pigeon droppings. Suspicion to diagnose begins with clinical symptoms that can be non-specific such as fevers, cough, and headaches. We present a case of steroid-induced cryptococcal infection in a non-HIV-infected person.
Nuclear re-interaction effects in quasi-elastic neutrino nucleus scattering
G. Co',C. Bleve,I. De Mitri,D. Martello
Physics , 2002, DOI: 10.1016/S0920-5632(02)01774-7
Abstract: The quasi-elastic neutrino-nucleus cross section has been calculated by using a Fermi gas model corrected to consider the re-scattering between the emitted nucleon and the rest nucleus. As an example of the relevance of this effect we show results for the muon production cross section on 16O target.
Sub-Optimal Allocation of Time in Sequential Movements
Shih-Wei Wu,Maria F. Dal Martello,Laurence T. Maloney
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0008228
Abstract: The allocation of limited resources such as time or energy is a core problem that organisms face when planning complex actions. Most previous research concerning planning of movement has focused on the planning of single, isolated movements. Here we investigated the allocation of time in a pointing task where human subjects attempted to touch two targets in a specified order to earn monetary rewards. Subjects were required to complete both movements within a limited time but could freely allocate the available time between the movements. The time constraint presents an allocation problem to the subjects: the more time spent on one movement, the less time is available for the other. In different conditions we assigned different rewards to the two tokens. How the subject allocated time between movements affected their expected gain on each trial. We also varied the angle between the first and second movements and the length of the second movement. Based on our results, we developed and tested a model of speed-accuracy tradeoff for sequential movements. Using this model we could predict the time allocation that would maximize the expected gain of each subject in each experimental condition. We compared human performance with predicted optimal performance. We found that all subjects allocated time sub-optimally, spending more time than they should on the first movement even when the reward of the second target was five times larger than the first. We conclude that the movement planning system fails to maximize expected reward in planning sequences of as few as two movements and discuss possible interpretations drawn from economic theory.
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