Search results for "DOT"
showing 10 items of 5147 documents
Microenvironmental adaptation of experimental tumours to chronic vs acute hypoxia
2004
This study investigated long-term microenvironmental responses (oxygenation, perfusion, metabolic status, proliferation, vascular endothelial growth factor (VEGF) expression and vascularisation) to chronic hypoxia in experimental tumours. Experiments were performed using s.c.-implanted DS-sarcomas in rats. In order to induce more pronounced tumour hypoxia, one group of animals was housed in a hypoxic atmosphere (8% O(2)) for the whole period of tumour growth (chronic hypoxia). A second group was acutely exposed to inspiratory hypoxia for only 20 min prior to the measurements (acute hypoxia), whereas animals housed under normal atmospheric conditions served as controls. Acute hypoxia reduced…
The Implication of Xyloglucan Endotransglucosylase/Hydrolase (XTHs) in Tomato Fruit Infection by Penicillium expansum Link. A
2007
In general, cell wall-degrading enzymes produced by plant pathogenic fungi are considered important pathogenicity factors. In this work, we evaluate the implication of xyloglucan endotransglucosylase/ hydrolase (XTHs), a potential hemicellulosic repairing enzyme, in the infection mechanism process by the fungus. This study investigated the SIXTHS expresion and xyloglucan endotransglucosylase (XET) activity during infection of two tomato fruit cultivars by Penicillium expansum Link. A. In infected fruits, XET specific activity decreased drastically after long infection periods, 24 and 48 h for Canario and Money Maker tomato fruits, respectively. Real Time RT-PCR of eleven SIXTHS also showed …
(177)Lu-labelled macrocyclic bisphosphonates for targeting bone metastasis in cancer treatment.
2015
Background Metastatic bone lesion is a common syndrome of many cancer diseases in an advanced state. The major symptom is severe pain, spinal cord compression, and pathological fracture, associated with an obvious morbidity. Common treatments including systemic application of bisphosphonate drugs aim on pain reduction and on improving the quality of life of the patient. Particularly, patients with multiple metastatic lesions benefit from bone-targeting therapeutic radiopharmaceuticals. Agents utilizing beta-emitting radionuclides in routine clinical praxis are, for example, [89Sr]SrCl2 and [153Sm]Sm-EDTMP. No-carrier-added (n.c.a.) 177Lu is remarkably suitable for an application in this sco…
Reduced Peak Bone Mass in Young Adults with Low Motor Competence
2023
Although suboptimal bone health has been reported in children and adolescents with low motor competence (LMC), it is not known whether such deficits are present at the time of peak bone mass. We examined the impact of LMC on bone mineral density (BMD) in 1043 participants (484 females) from the Raine Cohort Study. Participants had motor competence assessed using the McCarron Assessment of Neuromuscular Development at 10, 14, and 17 years, and a whole body dual-energy X-ray absorptiometry scan at 20 years. Bone loading from physical activity was estimated from the International Physical Activity Questionnaire at the age of 17. The association between LMC and BMD was determined using general …
Nopean painonpudotuksen vaikutukset kehon koostumukseen sekä neste- ja hormonitasapainoon kansallisen huipputason painijoilla
2007
Sarkkinen, Pasi 2007. Nopean painonpudotuksen vaikutukset kehon koostumukseen sekä neste- ja hormonitasapainoon kansallisen huipputason painijoilla. Liikuntabiologian laitos, Jyväskylän yliopisto. Pro Gradu –tutkielma. Nopean ja suuren painonpudotuksen vaikutuksia urheilijan elimistöön on tutkittu verrattain vähän ja mahdollisia terveydellisiä riskejä ei ole juurikaan tiedostettu. Nopea painonpudotus on hyvin yleisesti käytetty menetelmä painoluokkalajeissa, kun normaalipaino ylittää kilpailusarjan. Painijoiden painon pudotus ala- ja keskisarjoissa on useimmiten 5-8 kg eli 8-12 % kehonpainosta. 18 tervettä suomalaista painijaa osallistui kreikkalais-roomalaisen tyylin SM-kilpailuihin (2004)…
All-Optical Fiber Hanbury Brown & Twiss Interferometer to study 1300 nm single photon emission of a metamorphic InAs Quantum Dot
2016
[EN] New optical fiber based spectroscopic tools open the possibility to develop more robust and efficient characterization experiments. Spectral filtering and light reflection have been used to produce compact and versatile fiber based optical cavities and sensors. Moreover, these technologies would be also suitable to study N-photon correlations, where high collection efficiency and frequency tunability is desirable. We demonstrated single photon emission of a single quantum dot emitting at 1300 nm, using a Fiber Bragg Grating for wavelength filtering and InGaAs Avalanche Photodiodes operated in Geiger mode for single photon detection. As we do not observe any significant fine structure s…
Quantum-state transfer via resonant tunneling through local-field-induced barriers
2013
Efficient quantum-state transfer is achieved in a uniformly coupled spin-1/2 chain, with open boundaries, by application of local magnetic fields on the second and last-but-one spins, respectively. These effective barriers induce the appearance of two eigenstates, bilocalized at the edges of the chain, which allow a high-quality transfer also at relatively long distances. The same mechanism may be used to send an entire e-bit (e.g., an entangled qubit pair) from one to the other end of the chain. DOI: 10.1103/PhysRevA.87.042313
Size dependent carrier thermal escape and transfer in bimodally distributed self assembled InAs/GaAs quantum dots
2012
We have investigated the temperature dependent recombination dynamics in two bimodally distributed InAs self assembled quantum dots samples. A rate equations model has been implemented to investigate the thermally activated carrier escape mechanism which changes from exciton-like to uncorrelated electron and hole pairs as the quantum dot size varies. For the smaller dots, we find a hot exciton thermal escape process. We evaluated the thermal transfer process between quantum dots by the quantum dot density and carrier escape properties of both samples. © 2012 American Institute of Physics.
L'Irlanda e il mito di Daniel O'Connell nelle pagine della rivista francese Correspondant
2014
The liberal French magazine «Correspondant» has historically devoted some articles to the Irish political history and to the Irish “Liberator” and “Emancipator” Daniel O’Connell. Charles de Montalembert, who was named «O’Connell’s pupil» by French liberal Catholics, played a part in the first series of the French magazine. This appeared in 1829 as an organ of the Association pour la défense de la religion catholique. Among the editors’ goals there were: the truth, Catholicism, the independence and alliance of faith and freedom. In 1843, after a few years of inactivity, the «Correspondant» resumed publication and Montalembert returned to work in this second edition, supporting in his writing…
Orientamenti della giurisprudenza comunitaria in materia di responsabilità per danno da prodotti difettosi
2013
Il saggio ripercorre i più recenti orientamenti della giurisprudenza comunitaria in materia di responsabilità per danno da prodotti difettosi. In particolare, viene analizzato il rapporto tra la disciplina di armonizzazione e le discipline nazionali.