Results 31 to 40 of about 4,201,127 (322)

Chemical preservation of plants and insects in natural resins [PDF]

Proceedings of the Royal Society of London. Series B: Biological Sciences, 1998
The morphological preservation of fossils in amber is remarkable, but their chemical composition is largely unknown.
Stankiewicz, BA, Poinar, HN, Briggs, DEG, Evershed, RP, Poinar (Jr), GO   +4 more
openaire   +2 more sources

Agnus - First Czech High-Alpha Hop Variety.

Kvasný průmysl, 2002
In the year 2001, the variety Agnus was registered in the Czech Republic as the first Czech high-alpha variety of hop. It contains approximately 30 % b.w. in dry matter of total resins and 11 to 15 % b.w. of α-bitter acids.
K. KROFTA, V. NESVADBA, J. ČEPIČKA, A. MIKYŠKA   +3 more
doaj   +1 more source

Cation Exchange Resins for Predicting Available K on K-Deficient Soils: Extraction Capacity among Different Soil K Pools and First Insights on the Contribution of K Solubilized by Rhizosphere Microbes

Land, 2022
The contribution of non-exchangeable soil K in the total K availability may be essential to K deficient soils; however, less attention has been paid so far for proposing soil tests that assess the bioavailable structural K that is solubilized by soil ...
Fotis Bilias, Eleni Kotsangeli, Ioannis Ipsilantis, Nikolaos Barbayiannis   +3 more
doaj   +1 more source

The analysis of European lacquer : optimization of thermochemolysis temperature of natural resins [PDF]

, 2016
In order to optimize chromatographic analysis of European lacquer, thermochemolysis temperature was evaluated for the analysis of natural resins. Five main ingredients of lacquer were studied: sandarac, mastic, colophony, Manila copal and Congo copal ...
A Heginbotham, A Piccirillo, A-S Hô Le, C Riedo, Charles Indekeu, D Jun-Kai, D Scalarone, D Scalarone, Delphine Steyaert, Emile Van Binnebeke, F Piozzi, F Shadkami, Frederic Lynen, G Chiavari, G Nasini, G Steigenberger, H Keulen van, I Pastorova, ID Werf van der, ID Werf van der, J Koller, J Koller, J Poulin, J Romero-Noguera, JC Frade, JDJ Berg van den, JH Langenheim, JM Challinor, JS Mills, JW Leeuw de, K Sutherland, KB Anderson, KB Anderson, KB Anderson, KB Anderson, KB Anderson, Louise Decq, M Havelcová, M Kopplin, M Regert, M Webb, Michael Schilling, MT Doménech-Carbó, PS Bray, RJ Stacey, S Prati, S Saverwyns, S Watts, Steven Saverwyns, T Honda, U Baumer, V Cattersel, Vincent Cattersel, Wim Fremout   +53 more
core   +2 more sources

Pinoresinol stimulates keratinocyte proliferation and downregulates TNF‐α secretion in peripheral blood mononuclear cells: An experimental in vitro study

Health Science Reports, 2023
Background and Aims Natural coniferous resins are used in traditional medicine for the treatment of skin wounds. Coniferous wood resins (“callus” resin) are a mixture of abietic (resin) acids, lignans such as pinoresinol, and p‐coumaric acid.
Elias Haapakorva, Hannu Raunio, Atte vonWright, Ilkka Harvima   +3 more
doaj   +1 more source

Palynostratigraphy and palynofacies of the early Eocene Gurha lignite mine, Rajasthan, India [PDF]

, 2016
A 105 m early Eocene section exposed in the Gurha mine in the Nagaur-Ganganagar Basin, Rajasthan, India, archiving remains of equatorial vegetation at a time of extreme global warmth and close to the onset of the India-Eurasia collision, is investigated ...
Aggarwal, Anumeha Shukla, Batten, Biswas, Clausing, Dayal, Eberle, Frederiksen, Germeraad, Grice, Harley, Hart, Kar, Kar, Kar, Kar, Knights, Kumar, Kumar, Kumar, Lal, Madhav Kumar, Martin, Masron, Molnar, Morley, Muller, Norton, Pocock, Priyanka Monga, R.C. Mehrotra, Raju, Rao, Rao, Rao, Rawat, Robert A. Spicer, Roy, Sah, Shukla, Teresa E.V. Spicer, Thanikaimoni, Traverse, Tripathi, Tyson, Van Geel, Wang, Zachos, Zachos, Zarzen, Zarzen   +50 more
core   +1 more source

Recent advances in Fenton-like treatment of radioactive ion exchange resins

Chemical Engineering Journal Advances, 2023
Ion exchange resins (IERs) are widely used to remove radioactive contaminants from various commercial nuclear power plant systems. After the completion of their useful life cycle, IERs are removed from the nuclear facility and are known as spent resins ...
Muhammad Aamir Hafeez, Bhupendra Kumar Singh, Seok Hoon Yang, Jueun Kim, Byoungkwan Kim, Younglim Shin, Wooyong Um   +6 more
doaj  

Field Simulation of Global Change: Transplanting Northern Bog Mesocosms Southward [PDF]

, 2010
A large proportion of northern peatlands consists of Sphagnum-dominated ombrotrophic bogs. In these bogs, peat mosses (Sphagnum) and vascular plants occur in an apparent stable equilibrium, thereby sustaining the carbon sink function of the bog ecosystem.
Berendse, F., Breeuwer, A.J.G., Heijmans, M.M.P.D., Robroek, B.J.M.   +3 more
core   +2 more sources

Rubber Seed Oil-Based UV-Curable Polyurethane Acrylate Resins for Digital Light Processing (DLP) 3D Printing

Molecules, 2021
Novel UV-curable polyurethane acrylate (PUA) resins were developed from rubber seed oil (RSO). Firstly, hydroxylated rubber seed oil (HRSO) was prepared via an alcoholysis reaction of RSO with glycerol, and then HRSO was reacted with isophorone ...
Yun Hu, Guoqiang Zhu, Jinshuai Zhang, Jia Huang, Xixi Yu, Qianqian Shang, Rongrong An, Chengguo Liu, Lihong Hu, Yonghong Zhou   +9 more
doaj   +1 more source

Coagulant recovery from water treatment residuals: a review of applicable technologies [PDF]

, 2014
Conventional water treatment consumes large quantities of coagulant and produces even greater volumes of sludge. Coagulant recovery (CR) presents an opportunity to reduce both the sludge quantities and the costs they incur, by regenerating and purifying ...
Jarvis, Peter, Judd, Simon J., Keeley, James   +2 more
core   +1 more source