Search results for "Butter"
showing 10 items of 88 documents
Freestyle versus butterfly swimming performance – effects of age and sex
2014
AbstractPurpose. Recent studies have suggested that the age of peak freestyle swimming speed is reached earlier in life in women than in men. However, no study has investigated the age of peak swimming speed in other swimming styles such as butterfly. The aims of the present study were to investigate the age of peak swimming speed in elite male and female butterfly and freestyle swimmers at the national level (Switzerland) and the sex differences in both the age of peak swimming speed and swimming speed for both swimming styles. Methods. Results of the elite Swiss swimmers between 2006 and 2010 were analysed using one-way analysis of variance. Results. In butterfly, women achieved peak swim…
Potential impact of genetically modified Lepidoptera-resistant Brassica napus in biodiversity hotspots: Sicily as a theoretical model
2016
The general increase of the cultivation and trade of Bt transgenic plants resistant to Lepidoptera pests raises concerns regarding the conservation of animal and plant biodiversity. Demand for biofuels has increased the cultivation and importation of oilseed rape (Brassica napus L.), including transgenic lines. In environmental risk assessments (ERAs) for its potential future cultivation as well as for food and feed uses, the impact on wild Brassicaeae relatives and on non-target Lepidoptera should be assessed. Here we consider the potential exposure of butterflies as results of possible cultivation or naturalization of spilled seed in Sicily (Italy). Diurnal Lepidoptera, which are pollinat…
QUALITY PARAMETERS OF DAIRY WASTEWATER IN THE MUREŞ COUNTY, ROMANIA
2017
The objective of this study was to investigate the main quality indicators of wastewater in a dairy factory located in Mureş County, with a water treatment plant built recently. The wastewater samples were tested for extractable matter, total suspended matter, fixed residue, biological oxygen demand, chemical oxygen demand, total suspended solids and pH values. The results indicated that pollution levels of wastewater samples tested were found high. This means that the method of treatment does not have the necessary effectiveness that can cause high load of effluent in NH4+, total suspended solids, Chemical Oxygen Demand - COD-Cr, Biochemical Oxygen Demand - BOD5, pH for dairy wastewater fr…
Research on macrolepidoptera species (Insecta: Lepidoptera) collected in Dumbrava Sibului Forest (Romania) in conditions of the year 2011 and their s…
2012
Macrolepidoptera fauna of Sibiu and its surroundings is studied for over 124 years by the naturalists Saxons. The collected material is preserved in the form of individual collections at the Natural History Museum in Sibiu. In addition to our material collected by us since 2001, data from these collections were a valuable documentary material for the present work. Our considerations on Macrolepidoptera flight periods are based on research conducted during the year 2011 from March to November in the protected area Dumbrava Sibiului. The natural conditions and the characteristics of the investigated area were revealed in several previous articles that could be found in the reference list. Thi…
Lepidoptera (Insecta: Lepidoptera) in the collection of Daniel Czekelius from Natural History Museum of Sibiu, collected from "Dumbrava Sibiului" for…
2011
Currently, fauna and ecological analysis of the landscape in which the reserves and Forest "Dumbrava Sibiu" shows a great scientific interest and practical for biological research in Sibiu. The results can contribute substantially to assessing the state of the world of insects and their evolution in the ecosystem studied, but also to establish their quantitative and qualitative changes over time. In the present work was studied the Lepidoptera collection of Transylvania Dr. Daniel Czekelius, and the paper presents a systematic list of species collected Macrolepidoptere since 1888-1929 in Forest "Dumbrava Sibiu".This paper can be considered a tribute and memory of Dr.Daniel Czekelius entomol…
Using Anthocyanin Extracts from Butterfly Pea as pH Indicator for Intelligent Gelatin Film and Methylcellulose Film
2021
Among variety of intelligent food packaging, pH indicator packaging is becoming more popular, which can be made from synthetic and natural compounds. The search for natural pH indicator dyes that can be used in intelligent food packaging systems has recently focused on anthocyanins extracted from plants. Thus, this work aimed to develop and characterize an intelligent tag for pH indicator based on gelatin and methylcellulose-film with butterfly pea extract (BPE). The results showed that the colors of BPE solutions had a tendency to change from red to blue in a pH range of 4.0 to 8.0. The maximum absorption peak moved to a higher wavelength was observed at around 627 nm at pH 8.0 and shifted…
Predator mimicry, not conspicuousness, explains the efficacy of butterfly eyespots
2015
Large conspicuous eyespots on butterfly wings have been shown to deter predators. This has been traditionally explained by mimicry of vertebrate eyes, but recently the classic eye-mimicry hypothesis has been challenged. It is proposed that the conspicuousness of the eyespot, not mimicry, is what causes aversion due to sensory biases, neophobia or sensory overloads. We conducted an experiment to directly test whether the eye-mimicry or the conspicuousness hypothesis better explain eyespot efficacy. We used great tits ( Parus major ) as model predator, and tested their reaction towards animated images on a computer display. Birds were tested against images of butterflies without eyespots, wi…
Calculate Pulse from Touch Error Free PPG Signal with 2ndOrder Butterworth Filter
2021
With the ongoing heart problems of the population worldwide, the medical requirements of the people are expected to increase. Electrocardiogram (ECG) is one of the proven to capture the heart response signal to assess the electrical and muscular functions of the heart. The ECG setup is expensive and needs proper training, and of course, it is not instant. For fast, accurate heart parameter monitoring, scientists pay attention to the photoplethysmogram signal (PPG), based on the light intensity of a particular wavelength. Android smartphone with a good quality camera has come to ordinary people's reach and has become one of the most necessary and rugged devices for today and future generatio…
An individual based model for the conservation of the endangered Large Blue Butterfly, Maculinea arion (Lepidoptera: Lycaenidae)
2002
Abstract European populations of the Large Blue Butterfly Maculinea arion have experienced severe declines during the 20th century, especially in the northern part of the species’ range. This endangered lycaenid butterfly needs two resources for development: flower buds of specific plants ( Thymus spp., Origanum vulgare ), on which young caterpillars briefly feed, and red ants of the genus Myrmica , whose nests support caterpillars during a prolonged final instar. In order to improve understanding of those mechanisms that are most influential to population dynamics of the butterfly, we developed a stochastic population model. This individual based model implements three main biological comp…
Population genetic structure of the butterflyMelitaea didyma(Nymphalidae) along a northern distribution range border
1996
The population genetic structure of the butterfly Melitaea didyma was studied along the northern distribution range border in Central Germany by means of allozyme electrophoresis. Individuals were sampled from a total of 21 habitat patches from four regions, and two provinces. Sampling was designed to estimate local vs. regional differentiation. High levels of variability were found, He= 0.14-0.21. The mean expected sample heterozygosity from one region, Mosel, was significantly lower than from the Hammelburg region, He= 0.17 and 0.19, respectively. Two hierarchical levels of genetic differentiation were found. Within regions individuals sampled from different patches behaved as belonging t…