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Biochar production and application in small-scale farming in Kenya : Yield increases and local perceptions

Degradation of agricultural soils and forest resources are two pervasive challenges in rural landscapes of sub-Saharan Africa. Biochar-producing biomass gasification technologies attract evermore interest because these can empower small-scale farmers to produce energy and food more sustainably byimproving energy use efficiencies, lowering emissions and strengthening climate resilience. In order to

Generation of electron high energy beams with a ring-like structure by a dual stage laser wakefield accelerator

The laser wake-field accelerator (LWFA) traditionally produces high brightness, quasi-monoenergetic electron beams with Gaussian-like spatial and angular distributions. In the present work we investigate the generation of ultra-relativistic beams with ring-like structures in the blowout regime of the LWFA using a dual stage accelerator. A density down-ramp triggers injection after the first stage

De höll på sin rätt

I decennier var juridiken ett mansdominerat område. Men i slutet av 1800-talet började även kvinnor studera juridik. De måste dock överkomma många hinder innan de fick praktisera den. Artikeln belyser några av de kvinnliga pionjärerna inom juridiken och deras livsöden.

Karin Kock 1891-1976

Det finns många ”första” knutna till Karin Kock. Hon var den första kvinnan som gjorde karriär som akademisk nationalekonom, blev docent i nationalekonomi, fick professors namn i nationalekonomi, utnämndes till statsråd och till chef för en större statlig myndighet. Hon var en hårt arbetande och framgångsrik pionjär i den manliga värld som national- ekonomi och ekonomisk politik utgjorde. Hon röjd

‘The Mother of All Bad Movies’ : An audience research on the culture of Tommy Wiseau’s The Room based on the live cinematic experience

The world of cult cinema is dotted with numerous films that are often characterised by event-like evening screenings in independent or art-house cinemas years or even decades after the film’s initial release. One film synonymous with the cult cinema circuit is Tommy Wiseau’s The Room (2003), which has often been hailed as the ‘Citizen Kane of bad movies’ due to the film’s lack of artistic vision,

Assessing nature-based recreation to support urban green infrastructure planning in Trento (Italy)

Nature-based recreation is among the most relevant ecosystem services supplied by urban green infrastructure, affecting citizens' physical and mental wellbeing. Providing adequate green spaces for nature-based recreation is among the main goals of urban planning, but commonly-used indicators offer a partial view on the issue. Innovative methods and approaches, such as the ESTIMAP-recreation model,

Mapping and assessing ecosystem services to support urban planning : A case study on brownfield regeneration in Trento, Italy

This study explores the use of ecosystem service (ES) knowledge to support urban planning in the assessment of future scenarios. The case study concerns the prioritszation of brownfield regeneration interventions in the city of Trento (Italy). Alternative planning scenarios considering the conversion of existing brownfields into new urban parks are assessed and compared. The assessment focuses on

Memetic Algorithm with Filtering Scheme for the Minimum Weighted Edge Dominating Set Problem

The minimum weighted edge dominating set problem (MWEDS) generalizes both the weighted vertex cover problem and the problem of covering the edges of graph by a minimum cost set of both vertices and edges. In this paper, we propose a meta heuristic approach based on genetic algorithm and local search to solve the MWEDS problem. Therefore, the proposed method is considered as a memetic search algori

Pre-clinical effects of highly potent MEK1/2 inhibitors on rat cerebral vasculature after organ culture and subarachnoid haemorrhage

Background: Aneurysmal subarachnoid haemorrhage (SAH) is a variant of haemorrhagic stroke with a striking 50% mortality rate. In addition to the initial insult, secondary delayed brain injury may occur days after the initial ischemic insult and is associated with vasospasms leading to delayed cerebral ischemia. We have previously shown that the MEK1/2 inhibitor U0126 improves neurological assessme

Experimental investigation on heat transfer characteristics of various nanofluids in an indoor electric heater

Heat transfer characteristics of an electric heater were experimentally investigated by using various fluids in this paper, including Cu-EGW (a mixture of ethylene glycol and DI-water), Al2O3-EGW, Fe3O4-EGW nanofluids. A 4:6 mixture of ethylene glycol and deionized water was used as the base liquid. All these nanofluids were prepared by ultrasonic treatment, and nanoparticle mass concentration of

Over-rich combustion of CH4, C2H6, and C3H8 +air premixed flames investigated by the heat flux method and kinetic modeling

An uncommon non-monotonic behavior of the temperature dependence of adiabatic laminar burning velocity has been found in over-rich methane+air flames at equivalence ratio, ϕ = 1.4. To find out the universality and reasons of this turning point, methane, ethane and propane + air flames are studied both experimentally by the heat flux method and numerically using GRI-mech, USC-mech, UCSD-mech, FFCM

A role for hepatic lipase in chylomicron and high density lipoprotein phospholipid metabolism

The rate of removal of phosphatidylethanolamine and phosphatidylcholine from the plasma of rats treated with antiserum to hepatic lipase was measured. The hepatic lipase antiserum was injected intravenously into animals prior to injection of 32P-labeled chylomicrons or 32P-labeled high density lipoproteins. In experiments in which 32P-labeled chylomicrons were injected, antiserum treatment inhibit

Var finns den oberoende professorn?

Ett generellt problem för professorn är att finna en lämplig avvägning mellan rollen som oberoende bedömare av samhällsutvecklingen och rollen som expert eller konsult åt externa uppdragsgivare. Detta dilemma diskuteras här med utgångspunkt från den växande kopplingen mellan professorskåren inom nationalekonomi och den offentliga sektorn under de senaste 10–15 åren. Någon enkel lösning på motsättn

Spurring remanufacturing through public procurement – A case study in the Swedish automotive industry

There is a growing political consensus in the European Union (EU) to move away from the current resource intensive “linear” economic system, towards an innovative system aiming at closing material loops – the so-called circular economy. An array of new policy proposals targeting all stages of the life-cycle of a product are needed to facilitate the transition to a circular economy in Europe. While