Search results for "Mass"
showing 10 items of 9693 documents
Protein recovery as a resource from waste specifically via membrane technology : from waste to wonder
2021
Economic growth and the rapid increase in the world population has led to a greater need for natural resources, which in turn, has put pressure on said resources along with the environment. Water, food, and energy, among other resources, pose a huge challenge. Numerous essential resources, including organic substances and valuable nutrients, can be found in wastewater, and these could be recovered with efficient technologies. Protein recovery from waste streams can provide an alternative resource that could be utilized as animal feed. Membrane separation, adsorption, and microbe-assisted protein recovery have been proposed as technologies that could be used for the aforementioned protein re…
Effets du mode de travail du sol sur les microorganismes à l'échelle du profil cultural
2009
Soil tillage modifies the location of crop residues and soil structure and affects microbial populations and activities such as mineralization of soil organic matter. The aim of this work was to compare the effect of two tillage systems (traditional mouldboard ploughing, LT, and reduced tillage, TR) on crop residues distribution and soil structure as well as their consequences on soil microbial biomass (BM), the potential activity of C mineralization (Cmin) and soil bacterial community structure (through T-RFLP). In order to study simultaneously the effects of soil structure modifications and crop residues distribution on these microbial parameters we used a stratified sampling scheme based…
Kakeksian mekanismit ja hoito
2022
Kakeksia on sairauden aiheuttama tila, jossa paino sekä luurankolihaksen ja rasvakudoksen määrä vähenevät ja toimintakyky heikkenee, eikä näitä oireita voida täysin kumota ravitsemuksen tuella. Kakeksiaa esiintyy erityisesti syöpäsairauksien yhteydessä. Se heikentää elämänlaatua, lisää kuolleisuutta ja hankaloittaa perustaudin hoitovasteen saavuttamista. Kakeksian patofysiologia tunnetaan vain osittain. Tärkeimpiä mekanismeja ovat yleistynyt tulehdusvaste, luurankolihaksen surkastuminen, rasvakudoksen aineenvaihdunnan muutokset ja hormonaalisen toiminnan häiriintyminen. Yksittäisiin tekijöihin vaikuttavat lääkitykset eivät tilan monitekijäisen patofysiologian vuoksi tehoa riittävästi, eikä …
Physico-chemical characterisation of a non-conventional food protein source from earthworms and sensory impact in arepas
2009
International audience; This study aimed to characterise a non-conventional protein source: a powder made from earthworms, and to evaluate its potential use as human food. The way it was prepared led to low solubility and wide particle size distribution. Sensory analysis was used to assess the acceptability and the organoleptic properties of maize-based pan-cakes fortified with this novel protein powder. Satisfying products were obtained with a substitution level of 5.5% (w/w) earthworm powder in pan-cakes. GC-MS allowed the identification of more than seventy volatile compounds that may be responsible for the off-odour of the powder. The most abundant chemical groups found in the volatile …
Comparison of Post-Weld Treatment of High-Strength Steel Welded Joints in Medium Cycle Fatigue
2010
This paper presents a comparison of three post-weld treatments for fatigue life improvement of welded joints. The objective is to determine the most suitable post-weld treatment for implementation in mass production of certain crane components manufactured from very high-strength steel. The processes investigated are: burr grinding, TIG dressing and ultrasonic impact treatment. The focus of this investigation is on the so-called medium cycle area, i.e. 10 000-500 000 cycles and very high stress ranges. In this area of fatigue design, the use of very high strength steel becomes necessary, since the stress range can exceed the yield-strength of ordinary structural steel, especially when consi…
Diversidad latina y comunicación panhispana en la prensa en español de Nueva York al inicio del siglo XXI
2008
En: Doxa Comunicación : revista interdisciplinar de estudios de comunicación y ciencias sociales. ISSN 1696-019X n. VI, 2008, pp 15-51 Las transformaciones de la prensa hispana en Nueva York en la década del cambio de siglo apuntan la configuración de una incipiente identidad cultural panhispánica. Esa identidad panhispánica se muestra gracias al contenido informativo y publicitario de diversos periódicos en español de esa ciudad, pero sobre todo mediante los tres diarios El Diario-La Prensa, Hoy y Noticias del Mundo. La metodología empleada ha sido un análisis cuantitativo-cualitativo de sus contenidos informativos y publicitarios, con el objetivo de evaluar el carácter de esa prensa, adem…
Strategic renewal : Can it be done profitably?
2022
Industry transformation requires strategic renewal at the level of individual firms. Executives then face the dilemma of choosing renewal paths in the face of uncertainty over the competitive environment of the future, and hence the profitability of potential strategies. This dilemma motivates us to study industry transformation from the perspective of strategic renewal among 208 large firms in the global pulp and paper industry. The findings of our qualitative comparative analysis show that only a minority of firms in our sample succeeded in profitable proactive renewal. Content-wise, there were similarities in the pursued strategies over the wider population, but only a few maintained sup…
Aspetti della produzione dei piccoli ruminanti con impatto sulla salute umana
2011
Negli ultimi anni l’attenzione del consumatore si è sempre più orientata verso le caratteristiche nutrizionali degli alimenti. Queste proprietà sono di grande importanza anche per quanto riguarda le produzioni dei piccoli ruminanti. Il presente lavoro ha lo scopo di riassumere i principali risultati emersi dal progetto di ricerca “Aspetti della produzione dei piccoli ruminanti con particolare impatto sulla salute umana”. Sono stati analizzati mediante i metodi descritti in letteratura: 1) i polimorfismi genetici dei biopeptidi del latte dei piccoli ruminanti; 2) le attività di alcuni enzimi della membrana del globulo di grasso e la frazione lipidica del latte ovino; 3) la qualità nutriziona…
Mapping productivity and essential biophysical parameters of cultivated tropical grasslands from sentinel-2 imagery.
2020
Nitrogen (N) is the main nutrient element that maintains productivity in forages
Quali sono le specie arboree a rapido accrescimento per la Sicilia?
2018
A dispetto dell’uso diffuso massiccio della locuzione “specie a rapido accrescimento”, riferita a specie utilizzate per la produzione di biomassa, mancano ad oggi riferimenti certi che servano a definire le suddette specie. Si consideri, inoltre, che la locuzione è utilizzata, oltre che in articoli e testi tecnici, anche in testi che hanno carattere applicativo e/o costituiscono norme di riferimento come, ad esempio, le misure dei Piani di Sviluppo Rurale. Una definizione ormai datata della FAO (1967), riferita ai paesi in via di sviluppo, riporta: “Fast-growing species are considered as those capable of a mean annual increment of at least 10 cubic meters per hectare”. Nel frattempo, da qua…