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The paper presents information concerning metrological and technical characteristics of KTU-Griff-Tester device, the optimization
of its parameters and the cases of its application. It was defined that the behaviour of textile material during its extraction
through a rounded hole depends upon its structure. Variations of geometrical shape of woven and knitted specimens can be described
by mathematical expressions of shortened epicycloids and Cassini ovals. It is shown that waving process of disc shaped specimen
can be predicted on the basis of the law of sine curve. The examples of textiles treatment with different types of commercial
softeners are presented, herewith showing the suitability (sensitiveness) of the new device to detect the changes of textile
hand. Meantime it is shown that the level of materials anisotropy can be decided on the basis of transformations of specimen’s
geometrical shape. 相似文献
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Nijolė Lemežienė Eglė Norkevičienė Giedrė Dabkevičienė Jurgita Cecevičienė Bronislava Butkutė 《Acta Agriculturae Scandinavica, Section B - Plant Soil Science》2013,63(2):118-124
Searching for novel energy crops, an interest in C4-type plant switchgrass (SWG) has increased worldwide. The present research was aimed to study SWG genetic resources for most important agrobiological traits with a view of extending the range of energy plants in the Nemoral zone of Europe. SWG was studied for the peculiarities of developmental stages, winter hardiness, and dry matter (DM) yield. SWG regrowth in spring started one month later compared to the reed canary grass (variety ‘Chiefton’). All investigated genotypes matured seeds in the second half of September. The most winter-hardy SWG accessions (0–20% winter damage) were the majority of wild ecotypes and the variety ‘Dacotah’ from North Dakota (2–4 hardiness zone) as well as the variety ‘Summer’ from South Nebraska (4, 5 hardiness zone). Ecotypes from North Dakota exhibited a high breeding potential and prospects in Northern regions of Europe due to genotypic variation of winter hardiness trait. The varieties ‘Alamo’, ‘Falcon’, ‘Grenville’, ‘Shawnee’, and ‘Trailblazer’ that originated from warmer climate zones (6–9 hardiness zone) were heavily damaged or completely killed. The worst overwinter survival of plants was recorded after the first winter. DM yield was estimated at two regimens of cutting. When grass was cut once at seed maturity stage, DM yield in the first harvest year was 249 g per plant, in the second harvest year 349 g per plant, and in the third harvest year 493 g per plant. When grass was cut twice per season (at the beginning of anthesis and after regrowth of aftermath), DM yield was significantly lower: in the first harvest year the DM yield was 203 g per plant (18.4% less), in the second harvest year 182 g per plant (47.9% less), and in the third harvest year 272 g per plant (44.7% less). 相似文献
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Pasquale De Vita Donatella B.M. Ficco Alessandro Luciani Olimpia Vincentini Massimo Pettoello-Mantovani Marco Silano Luigi Maiuri Luigi Cattivelli 《Journal of Cereal Science》2012
Celiac disease (CD) is an autoimmune permanent enteropathy that is triggered in susceptible individuals after the ingestion of gluten, a storage protein fraction presents in wheat, rye and barley endosperm. Specific gluten peptides can bind to HLA-DQ2/8 and induce lamina propria CD4+ T cell responses causing damage of the small intestine mucosa. Recent studies suggested that beside immunodominant and toxic epitopes, wheat gluten also contains epitopes capable of preventing the mucosal response in vitro. Among them, a decapeptide (QQPQDAVQPF) from wheat was reported to have an antagonist effect on the agglutination of K562(S) cells and celiac T-cell activation, although the corresponding nucleotidic sequence remained unknown. This study was therefore designed to clone the sequence encoding the protein carrying the decapetide with CD protective properties. A ω-secalin gene encoding containing the decapeptide QQPQRPQQPF was isolated. Although the decapeptide was not identical to the one previously described, QQPQRPQQPF showed the same capability to prevent K562(S) cell agglutination and celiac mucosa immune activation induced by toxic gliadins. The ω-secalin gene was found in wheat carrying the wheat–rye chromosomal translocations 1BL.1RS. The identification of this immunomodulatory gliadin sequence, naturally occurring in cultivars of wheat toxic for celiac patients, might offer new therapeutic strategies for CD. 相似文献
35.
Laminated or coated fabrics are technical textile products and are defined as materials composed of two or more layers; at
least one of them is a textile fabric and one or more polymer film. The presence of film layer changes all fabric’s properties
and behaviour during its deformation. The goal of this research is to propose a new method for evaluation the influence of
structural stability of coated fabrics and laminates on their shear stiffness. Seven commercial coated fabrics and laminates
with woven or knitted base layer are used in this test. The shear behaviors of coated and laminated fabrics are analyzed during
the uniaxial tension of parallelepiped shape specimens whose top and bottom edges are cut with pitch of 16 degrees. The extension
test of such type specimens is carried out using a Zwick tension machine. The behaviour of the coated fabrics and laminates
during shearing are evaluated from strain-stress curves and the results are presented. 相似文献
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Barbara Parrino Anna Carbone Gloria Di Vita Cristina Ciancimino Alessandro Attanzio Virginia Spanò Alessandra Montalbano Paola Barraja Luisa Tesoriere Maria Antonia Livrea Patrizia Diana Girolamo Cirrincione 《Marine drugs》2015,13(4):1901-1924
A new series of nortopsentin analogues, in which the imidazole ring of the natural product was replaced by thiazole and the indole unit bound to position 2 of the thiazole ring was substituted by a 7-azaindole moiety, was efficiently synthesized. Two of the new nortopsentin analogues showed good antiproliferative effect against the totality of the NCI full panel of human tumor cell lines (~60) having GI50 values ranging from low micromolar to nanomolar level. The mechanism of the antiproliferative effect of these derivatives, investigated on human hepatoma HepG2 cells, was pro-apoptotic, being associated with externalization of plasma membrane phosphatidylserine and mitochondrial dysfunction. Moreover, the compounds induced a concentration-dependent accumulation of cells in the subG0/G1phase, while confined viable cells in G2/M phase. 相似文献
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Caselli E Boni M Di Luca D Salvatori D Vita A Cassai E 《Comparative immunology, microbiology and infectious diseases》2005,28(2):155-166
Although DNA vaccines have several advantages over conventional vaccines, antibody production and protection are often not adequate, particularly in single plasmid vaccine formulations. Here we assessed the potential for a combined vaccine based on plasmids encoding the membrane-anchored or secreted forms of bovine herpesvirus type 1 (BHV-1) glycoprotein B and D (gB and gD) to induce neutralizing and cell mediated immune responses in mice. Animals were injected by intramuscular, subcutaneous and intranasal routes. Mice immunized with the combined vaccine containing the secreted forms of BHV-1 glycoproteins developed higher titers of anti-BHV-1 neutralizing antibodies, compared to wild type gB/gD combined plasmids and to single plasmid injected groups. Cellular immunity was also developed in mice immunized with combined vaccines, whereas low or no response were observed in single plasmid injected animals. The data suggest the potential use of this combined vaccine in in vivo trials of calves, in order to evaluate its protective efficacy. 相似文献
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Succession and phylogenetic profile of eukaryotic communities in the composting process of rice straw estimated by PCR-DGGE analysis 总被引：5，自引：1，他引：5
Vita?Ratri?CahyaniEmail author Kazuo?Matsuya Susumu?Asakawa Makoto?Kimura 《Biology and Fertility of Soils》2004,40(5):334-344
The succession and phylogenetic profile of eukaryotic communities during the composting process of rice straw (RS) were studied by applying polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) analysis followed by sequencing of 18S rDNA. Principal component analysis and cluster analysis of the DGGE band patterns of eukaryotic communities resulted in exactly the same grouping as found with phospholipid fatty acid (PLFA) analysis (Cahyani et al. in Soil Sci Plant Nutr 48:735, 2002) and by the DGGE pattern analysis of the bacterial communities (Cahyani et al. in Soil Sci Plant Nutr 49:619, 2003) for the same samples, namely the communities characterizing the pre-composting stage (initial RS materials), and thermophilic, middle, and curing stages of the compost. Different eukaryotic members characterized the respective stages as follows: fungi (Ascomycota) for the initial RS materials, protozoans (Apicomplexa) as well as the fungi (Ascomycota) of the initial RS materials for the thermophilic stage, fungi (Ascomycota and Basidiomycota), protozoans (Opalozoa, Ciliophora and Leptomyxida), nematodes and stramenopiles for the middle stage, and fungi (Ascomycota, Zygomycota and Oomycota), algae (Haptophyceae and Chrysophyceae), and nematodes for the curing stage, respectively. Temperature, moisture content, and substrates available seemed to play a key role in determining the composition of eukaryotic members present at the respective stages of the composting process of RS. 相似文献
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Radio telemetry data were analysed to assess the microhabitat use, movement patterns, home range overlap and interspecific interactions of non‐native pumpkinseed Lepomis gibbosus (L.) and native brown trout Salmo trutta (L.) in a small English stream located immediately below a commercial angling lake from which pumpkinseed escaped. Although both species favoured pool habitats, brown trout preferred higher velocities and coarser substrata compared with pumpkinseed. Also, some individual brown trout preferred deeper waters than did pumpkinseed. Home range area of brown trout was substantially larger than that of pumpkinseed in spring and summer, and for both species, home range area in autumn was significantly smaller than in the other seasons. Range centre distribution analysis revealed that both species were distributed significantly nonrandomly within the stream during all seasons. There was substantial home range overlap between the two species in all seasons, the greatest being in spring. Overall distances moved were greatest during spring for both species, with brown trout moving greater distances relative to pumpkinseed. However, the absence of mutual attraction or avoidance between the species, as well as the lack of cohesion in preferred habitats and strong territorial fidelity, suggests little or no impact of introduced pumpkinseed on resident brown trout. 相似文献
40.
U. Muglia G. Vita R. Laura' C. L. Mammola G. Germana' 《Anatomia, histologia, embryologia》1997,26(2):147-150
Some morphometrical parameters of the axons making up the controlateral sciatic nerves, both in the male and female rabbits were calculated and compared by means of a Zeiss Vidas image analyser (Ober Kochen, Germany). The results show that the fibres constituting the left nerve have a greater mean diameter but a lower mean density than those constituting the right nerve. This suggests that the diameter of the myelinated fibres and the density of both the myelinated and unmyelinated fibres do not vary from male to female. On the other hand, the G ratio and the diameter of the unmyelinated axons do, since the nerves on the right side (in both sexes) have higher morphometric values, on average, than the controlateral ones. 相似文献