Search results for "TST"
showing 10 items of 473 documents
Incidence and epidemiology of Citrus tristeza virus in the Valencian Community of Spain
2000
Abstract The first outbreak of citrus tristeza disease in Spain caused by Citrus tristeza virus (CTV) was recorded in 1957 in the Valencian Community (VC). In total c. 40 million trees, mainly of sweet orange and mandarin grafted on sour orange rootstocks, declined due to CTV. Large-scale surveys in different municipalities of the VC indicated that the disease spread very fast. Incidence increased from 11% in 1989 to 53% in 1998. Toxoptera aurantii and Aphis spiraecola (inefficient aphid vectors of CTV) predominated before 1985–87. Since then the relatively efficient vector Aphis gossypii has become dominant and induced an epidemic that has been modelled. The large number of A.gossypii that…
Variation of haplotype distributions of two genomic regions of Citrus tristeza virus populations from eastern Spain.
2003
Genetic variation in natural populations of Citrus tristeza virus (CTV) was studied using haplotypes detected by single-strand conformation polymorphism (SSCP) analysis of two genomic regions (p20 gene and segment A, located in ORF1a). Analysis of 254 samples from 125 trees, collected at 12 different sites, yielded 8 different haplotypes for p20 and 5 for segment A. The most frequent haplotype of p20 was predominant at all sites, but several sites differed in the predominance of segment A haplotypes. At most sites, the homozygosity observed for the p20 gene tended to be higher than expected in a neutral evolution, whereas the opposite was true for segment A. Comparison of the populations at…
Diagnóstico etilógico de la disfunción ventricular izquierda con tomografia computerizada: comparación con coronariografía y cardiorresonancia
2012
[EN] Introduction and objectives To evaluate the capability of multidetector computed tomography to diagnose the coronary etiology of left ventricular dysfunction compared with using invasive coronary angiography and magnetic resonance. Methods Forty consecutive patients with left ventricular dysfunction of uncertain etiology underwent invasive coronary angiography and contrast magnetic resonance. All patients were evaluated with multidetector computed tomography including coronary calcium presence and score, noninvasive coronary angiography, and myocardial tissue assessment. Results The sensitivity and specificity of the presence of coronary calcium to identify left ventricular dysfunction…
Identity tensions in dual career : the discursive construction of future selves by female Finnish judo athletes
2019
To date, few studies have explored how changes in the practices, policies, and politics of sport and education may be implicated in how young athletes think about and plan for the future. Drawing on cultural praxis and feminist poststructuralist frameworks, this paper explores whether and how dual career (DC) policies and practices in Finland guide female judo athletes’ imaginings about their future. Discourse analysis was used to analyse interviews with three adolescent (aged 16) and three young adult (aged 20, 23, and 27) elite female judo athletes. Differences were found in the ways the athletes in the different age groups constructed their future athletic, civic and gendered selves. We …
Un-rooted grafted cuttings for eggplant plug-transplant production and shipping: simulated transportation and healing requirements
2019
Vegetable grafting is one of the most effective eco-friendly techniques to overcome pests and soilborne diseases in modern cropping systems of fruiting vegetables. Due to the increased farmers’ preference for grafted seedlings of high quality and better performance, the use of vegetable grafted plants is rapidly spreading and expanding over the world and intensive researches on new commercial production systems are under way. However, in many areas of the world, due to the high cost of skilled manpower, the use of grafted plug plants is still limited causing a relatively slow development of the grafting nursery industry. The aim of this work was to evaluate a possible use of un-rooted graft…
Collar and root rot of olive trees caused by Phytophthora megasperma in Sicily
2019
Olive (Olea europea L.) is grown on about 154,000 ha in Sicily (southern Italy). In the summer of 1999, a few 3-year-old olive trees with decline symptoms were observed in a recently planted commercial orchard in the Enna province (Sicily). The trees were propagated on wild olive (O. europea L. var. sylvestris Brot.) rootstock. Aerial symptoms, consisting of leaf chlorosis, wilting, defoliation, and twig dieback followed in most cases by plant death, were associated with root rot and basal stem cankers. A Phytophthora sp. was consistently isolated from rotted rootlets and trunk cankers using the BNPRAH (benomyl, nystatin, pentachloronitrobenzene, rifampicin, ampicillin, and hymexazol) sele…
Contesto economico e sociale delle regioni italiane in un'analisi di performance.
2006
Bibliotēkas pārvaldes sistēma
2021
Kvalifikācijas darba “Bibliotēkas pārvaldes sistēma” galvenais mērķis ir aprakstīt un izstrādāt sistēmu, kas palīdzētu daļēji digitalizēt bibliotēkas pārvaldes funkcionalitāti un nodrošinātu iespēju attālināti pārskatīt bibliotēkā pieejamos resursus. “Bibliotēkas pārvaldes sistēma” ir tiešsaistē pieejama sistēma, kas ļauj bibliotekāriem pārvaldīt grāmatu klāstu bibliotēkā un novērot veiktās rezervācijas. Ikdienas lietotāji var pārskatīt bibliotēkā pieejamās grāmatas un veikt šo grāmatu rezervāciju, kas nodrošina resursa pieejamību konkrētam lietotājam, ja uzreiz fiziski paņemt to nav iespējams. Lietotājs var brīvi uzzināt informāciju par grāmatu žanriem un autoriem, kā arī pārskatīt iepriek…
"Bankett"-banketu zāļu un svētku pakalpojumu katalogs, galvenais palīgs pasākumu organizēšanā Rīgā
2018
Kvalifikācijas darba mērķis ir izstrādāt sistēmu priekš pasākumu organizēšanas. Sistēma ļauj organizēt banketus Rīgā ātri un kvalitatīvi, tāpēc ka sistēmā atrodas visu izlaides sfēru pārstāvji. Pateicoties ērtai saskarnei ir ērti atrast nepieciešamo pakalpojumu. Lietotāji var iepazīties ar interesantām ziņām, kas satur padomus priekš labu pasākumu organizēšanas. Sistēma domāta gan lietotājiem, kuri grib atrast pakalpojumu savam pasākumam, gan lietotājiem, kas grib piedāvāt citiem savus pakalpojumus, kā arī administratoriem, kuri pārvalda sistēmu.
Transportlīdzekļu nomas un pārvaldes sistēma
2019
Informācijas sistēma “Transportlīdzekļu nomas un pārvaldes sistēma” ir publiska tiešsaistes sistēma, kas sniedz iespēju digitalizēt transportlīdzekļu pārvaldi, kā arī ieviest transportlīdzekļu nomas iespējas attālināti. Sistēma ļauj elektroniski iesniegt transportlīdzekļu nomas pieteikumus lietotājiem un pārvaldīt transportlīdzekļu nomas un pieteikumus atbildīgajām personām. Sistēmas lietotāji transportlīdzekļu nomas pieteikuma iesniegšanas brīdī veic apmaksu, kas padara nomas procesu daudz pārskatāmāku un drošāku pakalpojuma sniedzējiem. Sistēmā ietvertā transportlīdzekļu meklēšanas funkcija ļauj lietotājiem ērtāk un pārskatāmāk atrast sev vēlamo vai konkrētajā laikā pieejamo transportlīdz…