Search results for "bioma"

Biometaanin ja -vedyn tuotantopotentiaali Suomessa

2010

Globaali tarve edistää kestävää kehitystä, vähentää ympäristökuormitusta ja hidastaa ilmastonmuutosta edellyttää mm. materiaalivirtojen tehokasta hallintaa ja paluuta uusiutuvien ja kierrätettävien resurssien käyttöön. Biokaasuteknologia tarjoaa yhden ratkaisun, yhdistäen jätteiden käsittelyn ja energian tuotannon. Kiinnostus biokaasuteknologian käyttöön on lisääntynyt viime vuosina myös Suomessa. Suunnitteilla on useita biokaasulaitoksia. Lisäksi useat tahot ovat tehneet selvityksiä biokaasun hyödyntämiseksi. Tämän työn tavoitteena oli selvittää biokaasuprosessin raaka-aineeksi soveltuvien erilaisten biomassojen määrät ja sijainnit Suomessa. Tavoitteena oli myös selvittää näiden jakeiden m…

Tyypillisten biomassamateriaalien kemiallinen koostumus

2009

Inter‐individual variation of the urinary steroid profiles in Swedish and Norwegian athletes

2020

The steroidal module of the Athlete Biological Passport (ABP) aims to detect doping with endogenous steroids, e.g. testosterone (T), by longitudinally monitoring several biomarkers. These biomarkers are ratios combined of urinary concentrations of testosterone and metabolically related steroids. However, it is evident after five years of monitoring steroid passports, that there are large variations in the steroid ratios complicating its interpretation. In this study, we used over 11 000 urinary steroid profiles from Swedish and Norwegian athletes to determine both the inter‐ and intra‐individual variations of all steroids and ratios in the steroidal passport. Furthermore, we investigated if…

Biomassa, un modello energetico di hgestione sostenibile delle foreste

2014

Applicability of hybrid aspen (Populus tremula L. × P. tremuloides Michx.) bark extract as a precursor of rigid carbon foam and activated carbon

2023

Hybrid aspens have long attracted scientific interest, but the research on their use as feedstocks for chemical applications are still very limited. The bark biomass of the poplar species contains many valuable extractives that can be utilized as value-added products. This paper examines the applicability of hybrid aspen (Populus tremula L. × P. tremuloides Michx.) bark extract as a precursor of rigid carbon foam and activated carbon. To explore this, the study considers 1) the basic chemical composition of the bark in terms of added value potential, 2) the basic chemical composition of the bark extract and the effect of its pretreatment on the extract composition, 3) the production of rigi…

Could PD-1/PDL1 immune checkpoints be linked to HLA signature?

2019

The outstanding clinical expansion of monoclonal antibodies (mAbs) to programmed cell death receptor-1 (PD-1) (nivolumab and pembrolizumab) and PD-1 ligand-1 (PDL-1) (atezolizumab, avelumab and durvalumab) has received an increasing level of interest regarding immunotherapy and multidrug combinations, for the treatment of a number of common human malignancies. Some patients treated with these agents receive remarkable benefits in term of quality of life, progression-free (PFS) and overall survival (OS). However, a significant percentage of these patients experience immune-related adverse events (irAEs), while others present with an ultra-rapid disease progression, defined as hyperprogressio…

Physical Performance During the Menopausal Transition and the Role of Physical Activity

2020

Abstract Background To examine longitudinal changes in physical performance during the menopausal transition and the role of physical activity (PA) in these changes. Methods Based on follicle-stimulating hormone levels and bleeding diaries, women (47–55 years) were classified as early (n = 89) and late perimenopausal (n = 143) and followed prospectively until postmenopausal status, with mean duration of 17.5 and 13.8 months, respectively. Physical performance was measured by handgrip force, knee extension torque, vertical jumping height, maximal walking speed, and 6-minute walking distance. Physical activity was self-reported and categorized as inactive, low, medium, and high. Longitudinal …

Author Correction: Evaluation of three methods for biomass estimation in small invertebrates, using three large disparate parasite species as model o…

2018

Invertebrate biomass is considered one of the main factors driving processes in ecosystems. It can be measured directly, primarily by weighing individuals, but more often indirect estimators are used. We developed two indirect and non-destructive approaches to estimate biomass of small invertebrates in a simple manner. The first one was based on clay modelling and the second one was based on image analysis implemented with open-source software. Furthermore, we tested the accuracy of the widely used geometric approximation method (third method). We applied these three different methods to three morphologically disparate model species, an acanthocephalan worm, a crustacean and a flatworm. To …

In-Depth Characterization of Bioactive Extracts from Posidonia oceanica Waste Biomass

2019

© 2019 by the authors.

Inferring Phytoplankton, Terrestrial Plant and Bacteria Bulk δ¹³C Values from Compound Specific Analyses of Lipids and Fatty Acids.

2015

Stable isotope mixing models in aquatic ecology require δ13C values for food web end members such as phytoplankton and bacteria, however it is rarely possible to measure these directly. Hence there is a critical need for improved methods for estimating the δ13C ratios of phytoplankton, bacteria and terrestrial detritus from within mixed seston. We determined the δ13C values of lipids, phospholipids and biomarker fatty acids and used these to calculate isotopic differences compared to the whole-cell δ13C values for eight phytoplankton classes, five bacterial taxa, and three types of terrestrial organic matter (two trees and one grass). The lipid content was higher amongst the phytoplankton (…