排序方式: 共有291条查询结果,搜索用时 15 毫秒
21.
An atypical lesion on the forehead: warty dyskeratoma 总被引:1,自引:0,他引:1
Kargi E Altinyazar HC Hosnuter M Babuccu O Numanoglu G Babuccu B 《Plastic and reconstructive surgery》2003,111(4):1562-1563
22.
Said El?Shamieh Marion Neuillé Angélique Terray Elise Orhan Christel Condroyer Vanessa Démontant Christelle Michiels Aline Antonio Fiona Boyard Marie-Elise Lancelot Mélanie Letexier Jean-Paul Saraiva Thierry Léveillard Saddek Mohand-Sa?d Olivier Goureau José-Alain Sahel Christina Zeitz Isabelle Audo 《American journal of human genetics》2014,94(4):625-633
23.
The aim of the work was to investigate antitumoral effect of essential oils on cancer cells and their possible protective
(antioxidant) effects against hydrogen peroxide-induced cytotoxicity. Also, in vitro antioxidant properties of essential oils
and aqueous extracts from wild form and cultivated form of Salvia pisidica were compared. 相似文献
24.
Mulberry (Morus spp, Moraceae) is an important horticultural crop in Turkey, which is one of the main world producers of mulberry fruit. We evaluated the genetic relationships among 26 mulberry genotypes selected for agronomic characteristics, using RAPD markers. A total of 367 DNA markers were generated with 34 random primers. The highest genetic similarity (0.80) was observed between Oltu58 (M. nigra) and Olur90 (M. nigra) genotypes. The genotypes Oltu3 (M. alba) and Oltu18 (M. rubra) were the most distant (0.36). We found that the RAPD technique is a useful tool to discriminate mulberry genotypes at both the intra- and interspecific level. This type of information will aid in accurate identification of useful genotypes for breeding programs. 相似文献
25.
In a study where the removal of heavy metals from wastewater is the primary aim, the biosorption of heavy metals onto biosolids prepared as Pseudomonas aeruginosa immobilized onto granular activated carbon was investigated in batch and column systems. In the batch system, adsorption equilibriums of heavy metals were reached between 20 and 50 min, and the optimal dosage of biosolids was 0.3 g/L. The biosorption efficiencies were 84, 80, 79, 59 and 42 % for Cr(VI), Ni(II), Cu(II), Zn(II) and Cd(II) ions, respectively. The rate constants of biosorption and pore diffusion of heavy metals were 0.013–0.089 min–1 and 0.026–0.690 min–0.5. In the column systems, the biosorption efficiencies for all heavy metals increased up to 81–100 %. The affinity of biosorption for various metal ions towards biosolids was decreased in the order: Cr = Ni > Cu > Zn > Cd. 相似文献
26.
International Microbiology - Ectoine and hydroxyectoine are compatible solutes with enormous potential for use in the medical and cosmetic industries. Considering the excellent osmoprotective... 相似文献
27.
A new species of Helophorus Fabricius, 1775 is described from Erzurum, northeastern Turkey: Helophorus erzurumicus. In addition, distributional and morphological notes on H. ponticus Angus, 1988 are presented. 相似文献
28.
29.
Sam S Kucukasik F Yenigun O Nicolaus B Oner ET Yukselen MA 《Bioresource technology》2011,102(2):1788-1794
This study reports the first systematic investigation of the flocculation dynamics of exopolysaccharides (EPSs) produced by a halophilic bacterial strain grown on pretreated molasses as fermentation substrate. The potential use of these EPSs as an easily biodegradable, natural alternative for synthetic polyelectrolytes which are widely used and contain toxic and carcinogenic monomers was investigated. Flocculating activities of the EPS samples in synthetic water, synthetic sea water and natural sea water media which were used as model raw waters were monitored via the Photometric Dispersion Analyser (PDA 2000) instrument and removals were determined by measuring residual turbidities. One of the six EPS specimens, which formed the largest flocs thus performed highest turbidity removal, exhibited flocculation performance and particle removal efficiency comparable with commercial cationic, nonionic and anionic synthetic polyelectrolytes. 相似文献
30.
Novel aspects of osteoclast activation and osteoblast inhibition in myeloma bone disease 总被引:3,自引:0,他引:3
Heider U Hofbauer LC Zavrski I Kaiser M Jakob C Sezer O 《Biochemical and biophysical research communications》2005,338(2):687-693
Increased bone resorption is a major characteristic of multiple myeloma and is caused by osteoclast activation and osteoblast inhibition (uncoupling). Myeloma cells alter the local regulation of bone metabolism by increasing the receptor activator of NF-kappaB ligand (RANKL) and decreasing osteoprotegerin expression within the bone marrow microenvironment, thereby stimulating the central pathway for osteoclast formation and activation. In addition, they produce the chemokines MIP-1alpha, MIP-1beta, and SDF-1alpha, which also increase osteoclast activity. On the other hand, myeloma cells suppress osteoblast function by the secretion of osteoblast inhibiting factors, e.g., the Wnt inhibitors DKK-1 and sFRP-2. Moreover, they inhibit differentiation of osteoblast precursors and induce apoptosis in osteoblasts. The resulting bone destruction releases several cytokines, which in turn promote myeloma cell growth. Therefore, the inhibition of bone resorption could stop this vicious circle and not only decrease myeloma bone disease, but also the tumor progression. 相似文献