Search results for "hemo"
showing 6 items of 5646 documents
Inferring phytoplankton community composition with a fatty acid mixing model
2015
Abstract. The taxon specificity of fatty acid composition in algal classes suggests that fatty acids could be used as chemotaxonomic markers for phytoplankton composition. The applicability of phospholipid-derived fatty acids as chemotaxonomic markers for phytoplankton composition was evaluated by using a Bayesian fatty acid-based mixing model. Fatty acid profiles from monocultures of chlorophytes, cyanobacteria, diatoms, euglenoids, dinoflagellates, raphidophyte, cryptophytes and chrysophytes were used as a reference library to infer phytoplankton community composition in five moderately humic, large boreal lakes in three different seasons (spring, summer and fall). The phytoplankton commu…
Obesity and survival in operable breast cancer patients treated with adjuvant anthracyclines and taxanes according to pathological subtypes: a pooled…
2013
Obesity is an unfavorable prognostic factor in breast cancer (BC) patients regardless of menopausal status and treatment received. However, the association between obesity and survival outcome by pathological subtype requires further clarification. METHODS: We performed a retrospective analysis including 5,683 operable BC patients enrolled in four randomized clinical trials (GEICAM/9906, GEICAM/9805, GEICAM/2003-02, and BCIRG 001) evaluating anthracyclines and taxanes as adjuvant treatments. Our primary aim was to assess the prognostic effect of body mass index (BMI) on disease recurrence, breast cancer mortality (BCM), and overall mortality (OM). A secondary aim was to detect differences o…
Ādas hromoforu kartēšana 3, 4, un 5 spektrālo līniju apgaismojumā
2017
Darba mērķis bija izpētīt trīs līdz piecu hromoforu kartēšanas iespējas, izmantojot 3, 4 un 5 lāzerlīniju apgaismojuma ierīces un viedtālruni. Darba gaitā tika izveidotas un uzlabotas 3, 4 un 5 dažādu viļņu garumu lāzeru apgaismojuma ierīces. Ar triju lāzerlīniju apgaismojuma ierīci tika uzņemti 96 klīniskie mērījumi. Ar četru un piecu lāzerlīniju apgaismojuma ierīcēm tika uzņemti vairāki zilumu, hemangiomu un nēvusu mērījumi laboratorijas apstākļos. Katrai no trīs apgaismojuma ierīcēm tika izstrādāts algoritms hromoforu karšu iegūšanai. Darba rezultāti parāda, ka, izmantojot izveidotās ierīces, ir iespējams iegūt ādas hromoforu – melanīna, oksihemoglobīna, deoksihemoglobīna, bilirubīna un …
Ādas hromoforu kartēšana trihromātiskā lāzeru apgaismojumā
2015
Bakalaura darba mērķis ir noskaidrot, vai no trihromātiskā apgaismojumā uzņemta ādas attēla iespējams iegūt trīs hromoforu – melanīna, oksi- un deoksi- hemoglobīna – sadalījuma kartes. Darba gaitā tika izveidots attēlu apstrādes algoritms un veikti RGB attēlu mērījumi trīs lāzeru apgaismojumā (473, 532 un 659 nm). No attēla datu masīva izdevās izdalīt trīs monohromatiskus spektrālos attēlus pie katra izmantotā viļņa garuma. Tika novērtēts iespējamais gaismas ceļa garums ādas audos un piedāvāts aprēķinu modelis trīs hromoforu kartēšanai, ko izmantojot, tika analizēti ādas pigmentēto un vaskulāro pataloģiju mērījumi, kā arī oklūzijas tests. Iegūtie rezultāti pierāda, ka izveidotais algoritms …
Characterization and antimicrobial activity of the volatile components of the flowers of Magydaris tomentosa (Desf.) DC. collected in Sicily and Alge…
2014
The essential oils of the flowers of Magydaris tomentosa (Desf.) DC. (Apiaceae) collected in Sicily (MSi) and Algeria (MAl), respectively, were obtained by hydrodistillation, and their compositions were analysed. The analyses allowed the identification and quantification of 23 components in MSi and 60 compounds in MAl, respectively, showing a very different profile in the composition of the two populations. The main components of MSi were cembrene (28.2%), α-springene (17.5%) and β-springene (14.8%), also present in MAl but in lesser amount (0.4%, 1.8% and 0.9%, respectively), whereas the principal constituents of MAl were (E)-nerolidol (35.4%), α-costol (13.3%) and β-costol (6.8%). Both MS…
Late Jurassic (Kimmeridgian–Tithonian) stable isotopes (δ18O, δ13C) and Mg/Ca ratios: New palaeoclimate data from Helmsdale, northeast Scotland
2010
Abstract The data presented here provide the first detailed stable isotope ( δ 18 O, δ 13 C) and geochemical (Mg/Ca) investigation of Kimmeridgian–Tithonian belemnites from the Helmsdale Coast, Scotland, UK. Oxygen and carbon stable isotope values from well preserved specimens range from − 2.8 to + 0.3‰ and from − 2.3 to + 2.8‰ respectively. The oxygen isotope data are consistent with palaeotemperatures of up to 24 °C in the Early Kimmeridgian cymodoce Zone and down to 11 °C in the Mid Tithonian rotunda–fittoni Zones. These estimates are strongly supported by the Mg/Ca data, which also indicate a cooling episode (and very similar palaeotemperatures, 11–22 °C) at this time. The cooling event…