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Recreational cultural ecosystem services : How do people describe the value?

Different ways of viewing human-nature interactions affect the ways in which these are conceptualized and operationalized with regards to cultural ecosystem services (CES). To clarify if some conceptualizations provide more appropriate descriptions of benefits, these need to be discussed in relation to the lived experience. This paper addresses some aspects of the controversy around the use of the

Psychological factors influencing restrained behaviors during armed conflicts – A review of findings and challenges

Severe unrestrained behaviors during armed conflicts, such as the massacre in My Lai or abusive transgressions such as the torture-like behaviors occurring in Abu-Ghraib prison, often lead to increased difficulties to decrease hostilities or to gain a peaceful ending to a military conflict. Therefore, it is of highest relevance to understand which individual, situational and organizational factors

How spatial scale shapes the generation and management of multiple ecosystem services

The spatial extent of ecological processes has consequences for the generation of ecosystem services related to them. However, management often fails to consider issues of scale when targeting ecological processes underpinning ecosystem services generation. Here, we present a framework for conceptualizing how the amount and spatial scale (here discussed in terms of extent) of management interventi

Buffer formulation affects the interaction between lysozyme and polymeric nanoparticles

The effect of the buffer formulation in terms of buffer identity and ionic strength on the interaction between chicken egg lysozyme and carboxyl-modified polystyrene nanoparticles has been systematically studied. The time evolution of the fluorescence of a reporter molecule shows that lysozyme interacts with the nanoparticles in all the studied conditions. The interaction results in changes in pro

Effect of Start of Injection on the Combustion Characteristics in a Heavy-Duty DICI Engine Running on Methanol

Methanol as an alternative fuel in internal combustion engines has an advantage in decreasing emissions of greenhouse gases and soot. Hence, developing of a high performance internal combustion engine operating with methanol has attracted the attention in industry and academic research community. This paper presents a numerical study of methanol combustion at different start-of-injection (SOI) in

Optical Study of Fuel Spray Penetration and Initial Combustion Location under PPC Conditions

Low temperature combustion modes, such as Homogeneous Charge Compression Ignition (HCCI) and Partially Premixed Combustion (PPC), have been researched over recent decades since the concepts show promise for high efficiency and low emissions compared to conventional diesel combustion. PPC is an intermediate combustion type ranging from HCCI-like combustion to diesel-like combustion. The purpose of

Effects of Post-Injections Strategies on UHC and CO at Gasoline PPC Conditions in a Heavy-Duty Optical Engine

Gasoline partially premixed combustion (PPC) has shown potential in terms of high efficiency with low emissions of oxides of nitrogen (NOx) and soot. Despite these benefits, emissions of unburned hydrocarbons (UHC) and carbon monoxide (CO) are the main shortcomings of the concept. These are caused, among other things, by overlean zones near the injector tip and injector dribble. Previous diesel lo

Control-Oriented Modeling of Soot Emissions in Gasoline Partially Premixed Combustion with Pilot Injection

In this paper, a control-oriented soot model was developed for real-time soot prediction and combustion condition optimization in a gasoline Partially Premixed Combustion (PPC) Engine. PPC is a promising combustion concept that achieves high efficiency, low soot and NOx emissions simultaneously. However, soot emissions were found to be significantly increased with high EGR and pilot injection, the

Experimental investigations of potassium chemistry in premixed flames

Quantitative potassium species concentrations have been measured in alkali-seeded premixed methane-air flames of different stoichiometry. Potassium chloride (KCl) and hydroxide (KOH) were measured by broadband UV absorption spectroscopy and laser-induced photofragmentation fluorescence, while atomic potassium was measured using tuneable diode-laser spectroscopy. In addition, laser Rayleigh scatter

Partial drying accelerates bacterial growth recovery to rewetting

Fluctuations in soil moisture create drying-rewetting events affecting the activity of microorganisms. Microbial responses to drying-rewetting are mostly studied in soils that are air-dried before rewetting. Upon rewetting, two patterns of bacterial growth have been observed. In the Type 1 pattern, bacterial growth rates increase immediately in a linear fashion. In the Type 2 pattern, bacterial gr

NNT reverse mode of operation mediates glucose control of mitochondrial NADPH and glutathione redox state in mouse pancreatic β-cells

Objective: The glucose stimulation of insulin secretion (GSIS) by pancreatic β-cells critically depends on increased production of metabolic coupling factors, including NADPH. Nicotinamide nucleotide transhydrogenase (NNT) typically produces NADPH at the expense of NADH and δpH in energized mitochondria. Its spontaneous inactivation in C57BL/6J mice was previously shown to alter ATP production, Ca

Sulfatase modifying factor 1 (SUMF1) is associated with Chronic Obstructive Pulmonary Disease

Background: It has been observed that mice lacking the sulfatase modifying factor (Sumf1) developed an emphysema-like phenotype. However, it is unknown if SUMF1 may play a role in Chronic Obstructive Pulmonary Disease (COPD) in humans. The aim was to investigate if the expression and genetic regulation of SUMF1 differs between smokers with and without COPD. Methods: SUMF1 mRNA was investigated in

Using community trait-distributions to assign microbial responses to pH changes and Cd in forest soils treated with wood ash

The identification of causal links between microbial community structure and ecosystem functions are required for a mechanistic understanding of ecosystem responses to environmental change. One of the most influential factors affecting plants and microbial communities in soil in managed ecosystems is the current land-use. In forestry, wood ash has been proposed as a liming agent and a fertilizer,

Perspectives for the Brazilian bioethanol sector : The innovation driver

This article addresses the future of Brazil's bioethanol sector, focusing on its capabilities to innovate, its efforts toward producing cellulosic ethanol, and on recently implemented policies. Contrary to what has been argued in the literature, Brazil may not be prepared to face the technological and market challenges now emerging in the biofuels domain worldwide. Important productive investments

The change of longitudinal relaxation rate in oxygen enhanced pulmonary MRI depends on age and BMI but not diffusing capacity of carbon monoxide in healthy never-smokers

Objective: Oxygen enhanced pulmonary MRI is a promising modality for functional lung studies and has been applied to a wide range of pulmonary conditions. The purpose of this study was to characterize the oxygen enhancement effect in the lungs of healthy, never-smokers, in light of a previously established relationship between oxygen enhancement and diffusing capacity of carbon monoxide in the lun

See and tell : Differences between expert and novice teachers’ interpretations of problematic classroom management events

Experience in the classroom influences how teachers interpret classroom events. This article investigated differences between expert and novice teachers' interpretations of authentic, problematic classroom events. Two types of videos presented problematic events, displaying either unrelated problems, such as disengaged, off-task students, or interrelated problems leading to a flagrant disruption.

Scrutinizing the relationship between adaptation and resilience : Longitudinal comparative case studies across shocks in two Nepalese villages

Growing concerns regarding the vulnerability of communities to natural disasters and climate-related hazards and risks have caused attention to be increasingly directed towards adaptation and resilience as important policy prescriptions. These two concepts are commonly becoming normative when used in this context and seen as intrinsically linked to each other, i.e. adaptation leads to resilience a