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Wyszukujesz frazę "González-Melo, A." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Transiliac Cerclage in Unstable Pelvic Ring Fractures
Autorzy:
Sanzana, Edgardo S.
Ojeda, Alvaro C.
Gonzalez-Rojas, Francisco
Lopez-Carcel, Gemma
Alfaro, Patricio A.
Melo-Aiello, Humberto
Powiązania:
https://bibliotekanauki.pl/articles/28409177.pdf
Data publikacji:
2022-07-01
Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:
pelvic ring fractures
pelvic instability
internal fixation
cerclage
Opis:
Background. To evaluate the outcomes of transiliac cerclage with Dall-Miles cable in the internal fixation of the posterior complex in unstable pelvic ring fractures between January 1995 and December 2014. Material and methods. A study of 42 men injured at work with an average age of 35.2 years (range, 23 to 61) was conducted. The mechanisms of injury were traffic accidents in 25 cases (59.5%), crushing accidents in 12 cases (28.6%), and fall from height in 5 cases (11.9%). Thirty-six cases were polytraumatized patients (85.7%). The patients were evaluated using Majeed’s functional score and Matta’s radiological criteria. Results. The average follow-up time was 135.8 ± 45.6 months. The clinical outcomes were excellent in 17 cases (40.5%), good in 19 cases (45.2%), fair in 5 cases (11.9%), and poor in 1 case (2.4%). The radiological outcomes were satisfactory in 32 cases (76.2%) and unsatisfactory in 10 cases (23.8%). All fractures were healed. The sequelae were 3 cases (7.2%) of lower limb dysmetria and 3 cases (7.2%) of chronic neuropathic pain. Conclusion. The internal fixation of the sacroiliac complex by Dall-Miles cable cerclage reinforced with small fragment plates should be considered as an alternative method for minimally invasive osteosynthesis in selected cases of unstable pelvic ring fractures.
Źródło:
Ortopedia Traumatologia Rehabilitacja; 2022, 24(3); 143-148
1509-3492
2084-4336
Pojawia się w:
Ortopedia Traumatologia Rehabilitacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radial variations in wood density and their implications for above-ground biomass estimations, in a tropical high-andean forest
Autorzy:
González-Melo, A.
Powiązania:
https://bibliotekanauki.pl/articles/2078271.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
wood density
above-ground biomass
radial variations
tropical high-Andean trees
Opis:
Wood density (WD) is a central trait to explain tree functioning, and is also an important predic- tor of tree above-ground biomass (AGB). Therefore, radial trends in WD (i.e., from pith to bark) may have important implications in understanding tree life-history variations, as well as in forest biomass and carbon estimations. The occurrence of these radial trends in WD is thought to vary among forests, particularly with canopy openness and stratification. Yet, most of the studies on this topic in tropical forests have been conducted on lowland closed-canopy forests, while very little is known about the prevalence and magnitude of these trends among trees from open-canopy forests, such as high-mountain forests. I examined radial gradients in WD and explored their implications for AGB estimations. Radial wood cores were taken with increment borers from 69 trees belonging to 18 species from a high-An- dean forest. Each wood core was cut every 1-cm, and WD was measured for every 1-cm segment. Errors in AGB estimations that resulted from not considering radial trends in WD were estimated for each tree and species. Eight out of eighteen species had significant radial trends in WD. Among these species, two species showed decreases of WD towards the bark, one species showed increments of WD from pith to bark, and five species showed U-shaped gradients (i.e., high WD near the pith and bark, and relatively low WD at inter- mediate diameters). The prevalence of U-shaped radial trends in WD may be related to the relatively open and less stratified canopy of the study forest. Not taking into account radial trends in WD led in general to under-estimations of AGB (averaging −7.66 % when using mean WD, and −5.56 % for outer WD) in most of the study species, suggesting that tropical high-Andean forests may possibly store more biomass carbon than has been previously estimated. These findings are important to expand our knowledge on wood allocation patterns during tree ontogeny, and also to improve the accuracy of biomass and carbon estimations in tropical high-Andean forests
Źródło:
Dendrobiology; 2021, 86; 19-28
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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