Search results for "light"
showing 10 items of 3575 documents
Self-assembly of monodisperse oligonucleotide-elastin block copolymers into stars and compound micelles.
2010
Die Wirkung unterschiedlicher Lichtintensitäten auf die Nitratreduktase-Aktivität, den Gehalt an löslichen Proteinen und löslichen reduzierenden Zuck…
1977
Summary Plants of Sinapis alba (white mustard) grown under strong light conditions have a higher content of soluble reducing sugars, of soluble proteins and a higher dry wight during growth from germination to flowering. Furthermore, in these plants the nitrate reductase activity is essentially higher during the vegetative development, but before the beginning of the flowering phase the activity is less than the level of plants grown under low light intensities. The results obtained indicate a direct correlation between nitrate reductase activity and the content of soluble proteins. In the high-light plants both components show distinct maxima 13—14 days after sowing the seeds. The enhancem…
Measurement of Photosynthesis and Transpiration in Spruce Trees with Various Degrees of Damage
1987
Summary In the context of a project on physiological and biochemical characterization of spruce with different degrees of damage, the C02 and H2O gas exchange of 22-year-old spruce from a location in the Hunsru.ck (West Germany) were measured in summer 1985. The measurements were carried out on shoots from 1984 and were set up as a pair comparison, i.e. the measurement data of a tree with symptoms of damage were always compared with a tree in the immediate vicinity which phenotypically showed less damage. Diurnal course measurements in the open air revealed a marked reduction of photosynthesis depending on the degree of damage of the trees. If one plots photosynthetic rate against light int…
Effects of Kinetin and Different Light Qualities on the Content of Carbohydrates
1983
Summary The effects of kinetin on the content of soluble redueing sugars, starch, soluble proteins and various components of the photosynthetic apparatus were studied with primary leaves of Sinapis alba, which were grown under different light qualities (white, red, blue Jight conditions). It was especially the content of soluble reducing sugars that was most influenced by kinetin. The enhancement of the sugar content was dependent on the duration of application as well as on the concentration of kinetin. The doseresponse curve shows that the sugar content strongly increased at low kinetin eoneentrations (0.01 to 1 mg · 1-1), whereas from 1 mg · 1-1 onwards the inerease was slower and linear…
Author’s Response to Professor Reiber’s second letter concerning our article: High sensitivity of free lambda and free kappa light chains for the det…
2009
Technologies for cultivation and exploitation of microalgae in industrial applications
2020
This thesis work is focused on technologies for the development of the microalgal industry. During this 3-years PhD work several themes were addressed. Section 1 consists in a literature review concerning the general features of microalgae, their composition and a description of the photosynthetic process. Furthermore, themes such as biosynthetic pathways, growth kinetics, microalgae cultivation and their applications are reviewed. Section 2 focuses on the genetic manipulation of microalgae aimed at producing a vitamin B12-enriched food supplement. In this case, the human intrinsic factor gene, was inserted in the genome of the microalgae Chlamydomonas reinardhtii in order to integrate new …
Investigation of the resistance of different varieties of buckwheat to infectious diseases after the pre-sowing treatment of seeds and vegetating pla…
2016
In the work it was investigated the influence of sodium humate, biological products "Vermisol", "Vitasym" and "Bioeco-funge-1" on buckwheat lesion of Botrytis bunch rot, Downy mildew, Ascochyta blight, bacteriosis, burn virus and a complex of diseases after pre-sowing treatment of seeds and vegetating plants of Victoria, Roxolana, Kara-Dag, Rubra, Zelenokvitkova-90,Stepova, Elena, Aelita, Lada and Fagopyrum tataricum Gaertn buckwheat varieties. The prospects of these biological products use under agrocenosis conditions to protect the crops of buckwheat from the complex of diseases were shown. The highest effi- ciency identified for the drug "Bioecofunge-1" which , in addition to protecting …
Zilās gaismas draudu kumulatīvā analīze
2022
Maģistra darbs uzrakstīts angļu valodā uz 42 lappusēm. Tas satur 15 attēlus, 4 vienadojumi, 8 tabulas un 64 atsauces. Cilvēki katru dienu ir pakļauti zilajai gaismai. Zilā gaisma ir bīstama, ja tā pārsniedz 100 J / (cm2-sr) uz 106 ≤ t. Pirmsreceptoru makulas pigmenti, luteīns un zeaksantīns kopā ar lēcas kristālu absorbē zilo gaismu. Zilās gaismas svērtais spožums dažādos ekspozīcijas ilgumos tika modelēts ar doto datu bāzi, kas ņemta no f. fluxometrs dažādiem zilās gaismas avotiem. Rezultāti parādīja, ka gaismai, ko izstaro saules gaisma, īpaši saulainās dienās, ir visaugstākās zilās gaismas spožuma vērtības un tā tiek uzskatīta par kaitīgu, bet tomēr nepārsniedz vērtības, kas pierāda bīst…
Embedding energy consumption for lighting in the evaluation methods of the energy performance of buildings
2009
Measurement of haemodynamics of exercising and non-exercising vastus lateralis muscle with hybrid diffuse optics
2016
We present simultaneous diffuse correlation spectroscopy (DCS) and time resolved spectroscopy (TR NIRS) measurements on exercising and non-exercising vastus lateralis muscle. We discuss the results at two different exercise levels.