نتایج جستجو برای: moss
تعداد نتایج: 4495 فیلتر نتایج به سال:
PREMISE OF THE STUDY Mosses, very diverse in modern ecosystems, are currently underrepresented in the fossil record. For the pre-Cenozoic, fossil mosses are known almost exclusively from compression fossils, while anatomical preservation, which is much more taxonomically informative, is rare. The Lower Cretaceous of Vancouver Island (British Columbia, Canada) hosts a diverse anatomically preser...
Sphagnum species, primarily Sphagnum magellanicum Brid., are used internationally as a substrate for horticulture. Market demands have promoted indiscriminate exploitation leading to a number of potentially negative ecological and social consequences, including disruption of Sphagnum ecosystems, changes in water storage capacity of moss wetlands affecting water supply to rural communities and r...
This study was conducted at Abi – Jarash farm, Damascus, Syria, during 2018/2019 and 2019/2020 growing seasons. The aim of this comparing the effect three different cultivation techniques saffron (Crocus sativus L.), which were soilless cultivation, within nutrient film technique (NFT), in substrates (mixture peat moss- perlite), addition to soil. An increasing vegetative growth measurements re...
Helpful discussions with Bob Cumby and Diana Moss are gratefully acknowledged.
As we celebrate the fiftieth knowledge acquisition conference this year it is appropriate to review progress in knowledge acquisition techniques not only over the quarter century since the conference series began but backwards through the millennia to the beginnings of knowledge capture and forwards through the foreseeable future to speculate on reasonable expectations, appropriate targets and ...
ABSTRACT Watermelon (Citrullus lanatus) is a succulent fruit and vine-like plant that cultivated in Mexico it generates employment currency for the country. However, there need to research what local organic substrates can substitute peat moss as culture medium produce watermelon seedlings of good quality at low cost. The objective this study was evaluate physical chemical properties five subst...
1 Integrated Media Systems Center (IMSC), University of Southern California, Los Angeles, CA 90089, USA 2Ming Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90089, USA 3 Institute of Computer Science, Foundation for Research and Technology-Hellas (FORTH-ICS), Heraklion, Crete 70013, Greece 4Department of Computer Science, University of Crete, Hera...
If true, this property would mean that there is no interesting algebraic structure. There are very few results on the arithmetic nature of these numbers, even less on their independence: it is known that π is a transcendental numbers, hence, so are all ζ(2n), n ≥ 1. It is also known that ζ(3) is irrational (Apéry, 1978), and that infinitely many ζ(2n+ 1) are irrational (further sharper results ...
Air quality monitoring by using bio-indicator currently being promoted and frequently used in studies due to their advantages compared other scientific approaches. The of as a bio-monitoring air are, it remains the cheapest, most available simplest matrix for reliable atmospheric monitoring. This study was conducted determine moss ability be when expose different environments. Four environmenta...
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