Search results for "Relative"

Evaluation of a short food frequency questionnaire used among Norwegian children.

2012

Objective: The aim of this study was to evaluate a short food frequency questionnaire (FFQ) against a four-day precoded food diary (PFD) with regard to frequency of food intake among Norwegian 9- and 13-year-olds. Subjects and design: A total of 733 9-year-olds and 904 13-year-olds completed first a short FFQ and one to two weeks later a four-day PFD. The short FFQ included questions about 23 food items, including different drinks, fruits, vegetables, bread, fish, pizza, sweets, chocolate and savoury snacks. The PFD covered the whole diet. Results: When comparing mean intake from the PFD with comparable food items in the FFQ, all food items showed that increasing intake measured with the PF…

The Bias toward the Right Side of Others Is Stronger for Hands than for Feet

2021

As shown by a series of previous studies, ambiguous human bodies performing unimanual or unipedal actions tend to be perceived more frequently as right-handed or right-footed rather than left-handed or left-footed, which indicates a perceptual and attentional bias toward the right side of others&rsquo

Comparing air quality indices aggregated by pollutant

2011

In this paper a new aggregate Air Quality Index (AQI) useful for describing the global air pollution situation for a given area is proposed. The index, unlike most of currently used AQIs, takes into account the combined effects of all the considered pollutants to human health. Its good performance, tested by means of a simulation plan, is confirmed by a comparison with two other indices proposed in the literature, one of which is based on the Relative Risk of daily mortality, considering an application to real data.

Sezonowe zmiany występowania izolatów Fusarium w magazynach zbożowych

2018

Nasiona zbóż w skali globalnej dostarczają więcej energii, niż którekolwiek z uprawianych roślin, gdyż są bogate w węglowodany. W gospodarce światowej dominują uprawy takich gatunków zbóż, jak pszenica, jęczmień, kukurydza oraz ryż. Natomiast w Polsce ze względów klimatycznych uprawia się głównie: pszenicę, żyto, pszenżyto, jęczmienie, owies oraz kukurydzę. W łańcuchu produkcji rolno-spożywczej można wydzielić następujące etapy: uprawę, magazynowanie oraz przetwórstwo. Na każdym z tych etapów występują różne zagrożenia, w tym mykologiczne. Duży problem stanowią grzyby z rodzaju Fusarium i produkowane przez nie fuzariotoksyny. Grzyby te porażają zboża w uprawach, a także mogą utrudniać magaz…

SURFACE SUBGROUPS OF RIGHT-ANGLED ARTIN GROUPS

2007

We consider the question of which right-angled Artin groups contain closed hyperbolic surface subgroups. It is known that a right-angled Artin group $A(K)$ has such a subgroup if its defining graph $K$ contains an $n$-hole (i.e. an induced cycle of length $n$) with $n\geq 5$. We construct another eight "forbidden" graphs and show that every graph $K$ on $\le 8$ vertices either contains one of our examples, or contains a hole of length $\ge 5$, or has the property that $A(K)$ does not contain hyperbolic closed surface subgroups. We also provide several sufficient conditions for a \RAAG to contain no hyperbolic surface subgroups. We prove that for one of these "forbidden" subgraphs $P_2(6)$, …

On the genetics of psoriasis

1974

To elucidate the mode of inheritance in psoriasis, Falconer's model for estimating heritability which is under the assumption of multifactorial inheritance, was applied to the data of Hellgren (1967) from Sweden. The heritability estimates were based on both manifest and potential psoriasis since a clear separation of these two categories was impossible. These estimates were 64% for parents, 60% for siblings and 52% for all first degree relatives which included the children of psoriatic cases. For second degree relatives it was 48%. None of these differences are statistically significant. The results are discussed.

2004

Background Genetic variability in viral populations is usually estimated by means of polymerase chain reaction (PCR) based methods in which the relative abundance of each amplicon is assumed to be proportional to the frequency of the corresponding template in the initial sample. Although bias in template-to-product ratios has been described before, its relevance in describing viral genetic variability at the intrapatient level has not been fully assessed yet.

Variations in Substitution Rate in Human and Mouse Genomes

2003

We present a method to quantify spatial fluctuations of the substitution rate on different length scales throughout genomes of eukaryotes. The fluctuations on large length scales are found to be predominantly a consequence of a coarse-graining effect of fluctuations on shorter length scales. This is verified for both the mouse and the human genome. We also found that both species show similar standard deviation of fluctuations even though their mean substitution rate differs by a factor of two. Our method furthermore allows to determine time-resolved substitution rate maps from which we can compute auto-correlation functions in order to quantify how fast the spatial fluctuations in substitu…

Factors in Assessing Recidivism Risk in Young Offenders

2020

The research aims to identify if the accumulation of protective and/or risk factors might predict the risk of recidivism in juvenile delinquents and determine the relative weight of both types of factors in the predictions themselves. The risk of criminal recidivism was assessed with the Structured Assessment of Violence Risk in Youth&mdash

Inter-annual variation in macroinvertebrate communities in a shallow forest lake in eastern Finland during 1990–2001

2003

As a part of the Integrated Monitoring (IM) Programme of Air Pollution Effects on Ecosystems, the macroinvertebrate community of a pristine forest lake was monitored from 1990 up to the present. Lake Iso Hietajarvi is a small and shallow, weakly stratified oligotrophic headwater lake situated in Patvinsuo National Park, eastern Finland. Benthic macroinvertebrates were sampled annually, once in autumn at depths of 3 - 4 m (sublittoral zone) and at 7 m (profundal zone). The water quality of the lake and meteorological characteristics in the area were monitored during the same period. The inter-annual variation in macroinvertebrate abundance and taxonomic composition in the lake unaffected by …