| 1. |
|
|
| 2. |
- Divanoglou, Anestis, et al.
(författare)
-
Acute management of traumatic spinal cord injury in a Greek and a Swedish region : a prospective, population-based study.
- 2010
-
Ingår i: Spinal Cord. - : Springer Science and Business Media LLC. - 1362-4393 .- 1476-5624. ; 48:6, s. 477-482
-
Tidskriftsartikel (refereegranskat)abstract
- STUDY DESIGN: Prospective, population-based study. This paper is part of the Stockholm Thessaloniki Acute Traumatic Spinal Cord Injury Study (STATSCIS). OBJECTIVES: To characterize patient populations and to compare acute management after traumatic spinal cord injury (TSCI). SETTINGS: The Greater Thessaloniki region in Greece and the Greater Stockholm region in Sweden. METHODS: Inception cohorts with acute TSCI that were hospitalized during the study period, that is September 2006 to October 2007, were identified. Overall, 81 out of 87 cases consented to inclusion in Thessaloniki and 47 out of 49 in Stockholm. Data from Thessaloniki were collected through physical examinations, medical record reviews and communication with TSCI cases and medical teams. Data from Stockholm were retrieved from the Nordic Spinal Cord Injury Registry. RESULTS: There were no significant differences between study groups with regard to core clinical characteristics. In contrast, there were significant differences in (1) transfer logistics from the scene of trauma to a tertiary-level hospital (number of intermediate admissions, modes of transportation and duration of transfer) and (2) acute key therapeutic interventions, that is, the use of mechanical ventilation (49% in Thessaloniki versus 20% in Stockholm), and performance of tracheostomy (36% in Thessaloniki versus 15% in Stockholm); spinal surgery was performed significantly more often and earlier in Stockholm than in Thessaloniki. CONCLUSIONS: Despite largely similar core clinical characteristics, Stockholm and Thessaloniki cases underwent significantly different acute management, most probably to be attributed to adaptations to the differing regional approaches of care one following a systematic approach of SCI care and the other not.
|
|
| 3. |
- Pateraki, Chrysanthi, et al.
(författare)
-
Modelling succinic acid fermentation using a xylose based substrate
- 2016
-
Ingår i: Biochemical Engineering Journal. - : Elsevier BV. - 1369-703X. ; 114, s. 26-41
-
Tidskriftsartikel (refereegranskat)abstract
- This study focuses on the development of unstructured models, including both substrate and product inhibition, that predict the cultivation of Actinobacillus succinogenes and Basfia succiniciproducens on a mixture of C5 and C6 sugars, similar to the sugar composition contained in spent sulphite liquor, the liquid waste stream from the sulphite pulping process. The main sugar monomer contained in the medium was xylose (72.6%) with galactose (12.2%), glucose (10.9%), mannose (4.2%) and arabinose (0.1%) making up the remaining sugar content. The growth inhibition caused by metabolic products (succinic, lactic, acetic, formic and mixed acids) and initial mixed sugar concentration was determined. The highest obtained succinic acid yield, final concentration and productivity in fermentations carried out in Duran bottles were 0.76 g/g, 26.0 g/L and 0.66 g/L/h for B. succiniciproducens and 0.69 g/g, 27.4 g/L and 0.60 g/L/h for A. succinogenes, respectively (the units in yield calculations are referred to grams of succinic acid produced per gram of total sugars consumed). The kinetic parameters for both strains were estimated from experimental results. The obtained R2 values for the fitted models were 0.96 for A. succinogenes and 0.94 for B. succiniciproducens. A sensitivity analysis on the obtained parameters showed that the maximum specific growth rates (μmax) and the growth associated substrate consumption parameters (γ) are the most influential model parameters for both microorganisms. The model was validated by fermentations conducted in lab-scale bioreactors showing good agreement between experimental data and model simulations.
|
|
