Filtyp
Research conducted in recent years has documented the widespread presence of various forms of color vision in species from across the animal kingdom, helped to develop an understanding of the basic biological mechanisms that underlie this sensory capacity, and provided some insights into the utility of color vision in the natural world. This chapter draws information from all these various sources
BackgroundThe colors in which we see an object are not only dependent on the spectral composition of the reflected light but also represent an interpretation by our eyes and the trichromatic visual system.ObjectiveHow do animals of other species see the world?ResultsThe majority of mammals do not have three but only two types of cones and therefore have dichromatic color vision. Marine mammals and
The global energy tendency leads to increasing attention on clean combustion technologies in order to eliminate adverse impacts on the environment. The utilization of oxyfuel combustion (CO2 acts as the only combustion dilution), flame diluents, and hydrogen fuel in gas turbine combustion provides a promising solution to reduce combustion pollutant emissions. However, alteration in chemical and ph
This paper proposes a simple framework to model social preferences in a way that explicitly separates economic incentives from social (context) effects and allows for uncertainty also about the latter. Moreover, it allows non-economic cost associated with the deviation from some norm to be more discriminatory than just “right” or “wrong.” We refer to existing evidence on dictator game giving to de
This paper asks whether the sensitivity of market long-term interest rates and credit ratings is associated with cross-country differences in social trust. We note a number of theoretical mechanisms that suggest that macroeconomic shocks are more likely to be effectively dealt with in higher-trust societies. A set of panel estimates across middle- and high-income countries reveals that interest ra
Economic development, technological innovation, and policy change are especially prominent factors shaping energy transitions. Therefore explaining energy transitions requires combining insights from disciplines investigating these factors. The existing literature is not consistent in identifying these disciplines nor proposing how they can be combined. We conceptualize national energy transitions
The feasibility of mode control in rotating detonation engine is investigated through regulating the global equivalence ratio during the test under different air mass flow rates, chamber lengths, and blockage ratios at the exit, including the mode transitions between the single wave and two co-rotating waves, two counter-rotating waves and longitudinal pulsed detonation, two co-rotating waves and
Riksantikvarieämbetet har börjat utarbeta nya stöd för kultur- och naturmiljöer. AgriFood Economics Centre bidrar till detta arbete genom att undersöka exempel på alternativa stödformer inom miljöområdet.Vi visar att det finns ett flertal exempel på ersättning som har potential att nå högre miljönytta, ökad kostnadseffektivitet och ökat stöd bland jordbrukare än traditionell åtgärdsbaserad ersättn
Many mammals have specialized nose-tips with glabrous and often wet skin, called rhinaria. The function of the rhinarium is unknown in most species. Rhinaria differ not only in shape and skin structure, but also in skin temperature. They are considerably colder in carnivorans than in herbivorous artio- and perissodactyls. Domestic dogs are carnivorans and their noses often feel cold, such that the
It is not known exactly where amyloid-β (Aβ) fibrils begin to accumulate in individuals with Alzheimer's disease (AD). Recently, we showed that abnormal levels of Aβ42 in cerebrospinal fluid (CSF) can be detected before abnormal amyloid can be detected using PET in individuals with preclinical AD. Using these approaches, here we identify the earliest preclinical AD stage in subjects from the ADNI
Multilevel data occur frequently in many research areas like health services research and epidemiology. A suitable way to analyze such data is through the use of multilevel regression models. These models incorporate cluster-specific random effects that allow one to partition the total variation in the outcome into between-cluster variation and between-individual variation. The magnitude of the ef
Irritable bowel syndrome (IBS) is a gut-brain disorder involving alterations in intestinal sensitivity and motility. Serotonin 5-HT4 receptors are promising candidates in IBS pathophysiology since they regulate gut motor function and stool consistency, and targeted 5-HT4R selective drug intervention has been proven beneficial in subgroups of patients. We identified a single nucleotide polymorphism
PURPOSE: The purpose of this study is to investigate the relationship between sociodemographic factors and pharmacy dispensing of medications for erectile dysfunction (ED) in the general population of middle-aged and elderly men. By considering a number of medical conditions that could promote or contraindicate use of ED medication, the analysis could help capture prescription patterns that might
CO2 has a strong impact on both operability and emission behaviours in gas turbine combustors. In the present study, an atmospheric, preheated, swirl-stabilised optical gas turbine model combustor rig was employed. The primary objectives were to analyse the influence of CO2 on the fundamental characteristics of combustion, lean blowout (LBO) limits, CO emission and flame structures. CO2 dilution e
Purpose: This study investigated sleep, television, computer habits, and obesity in school-age children. Design and methods: This was a cross-sectional self-report survey of 1260 children in grade 4 (mean age, 10.1) living in southern Sweden (49.1% boys). The heights and weights of 1097 (87.1%) of the children were recorded. Descriptive statistics, bivariate analyses, and multiple logistic regress
This study aims to determine risk factors contributing to traffic crashes in 9,176 fatal cases involving motorcycle in Malaysia between 2010 and 2012. For this purpose, both multinomial and mixed models of motorcycle fatal crash outcome based on the number of vehicle involved are estimated. The corresponding model predicts the probability of three fatal crash outcomes: motorcycle single-vehicle fa
The number of triangulations of a planar n point set S is known to be cn, where the base c lies between 2.43 and 30. Similarly, the number of crossing-free spanning trees on S is known to be dn, where the base d lies between 6.75 and 141.07. The fastest known algorithm for counting triangulations of S runs in 2(1+o(1))nlog n time while that for counting crossing-free spanning trees runs in O (7.12
