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Browsing Natural and Agricultural Sciences by Type "Article"
Now showing items 1-20 of 4982
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(International Union of Crystallography, 2011)The title compound, (C21H25N2)[ReO4], was formed as the unexpected product in an attempted synthesis of a rhenium(I)–N-heterocyclic carbene (NHC) complex. The compound has crystallographic mirror symmetry with both the ...
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(International Union of Crystallography, 2011)Please read abstract in article.
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(Public Library of Science, 2015-05-13)A proxy rainfall record for northeastern South Africa based on carbon isotope analysis of four baobab (Adansonia digitata L.) trees shows centennial and decadal scale variability over the last 1,000 years. The record is ...
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(International Association for Plant Taxonomy, 2010-04)Article 36.1 in the International code of botanical nomenclature requires that, as from 1 January 1935, all names of new plant taxa (algae and fossils excepted) must be accompanied by a Latin description or diagnosis ...
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(International Association for Plant Taxonomy, 2010-04)MycoBank is a fully online system whereby the proposers of new scientific names of organisms treated as fungi under the Code can deposit key information that becomes public and freely available on the worldwide web only ...
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(Academy of Science of South Africa, 2019)Air pollution is characterised by the presence of chemicals or compounds in the air which are usually not present or are present at levels higher than those considered to be safe for human health. 1 Air pollution is the ...
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(International Union of Crystallography, 2012-07-02)The asymmetric unit of the title salt C8H22N4 2+2C7H5O2 , comprises two independent pairs of half a 2,2'-(piperazine-1,4- diyl)diethanaminium dication plus a benzoate anion. The dications are symmetrical and lie across ...
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A 20-year review of the status and distribution of African wild dogs (Lycaon pictus) in South Africa (Southern African Wildlife Management Association, 2020-02)South Africa is one of only seven countries with a viable population of African wild dogs (Lycaon pictus). The national population in 2017 was 372 adults and yearlings and comprised three subpopulations: 1) Kruger National ...
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(AOSIS Open Journals, 2018-09-27)Vegetation mapping of protected areas is a cornerstone of conservation worldwide. Established in 1928 and covering over 1.4 million hectares, Hwange National Park (HNP) is the largest natural reserve in Zimbabwe. In 1993, ...
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(Elsevier, 2022-01)The Eastern Cape Province, and in particular, it's interior western Karoo region, has long been subject to periodic droughts, with significant implications for it's agricultural sector. From 2015, with some recovery in ...
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(PeerJ, 2021-01-11)The cause of deaths of 350 elephants in 2020 in a relatively small unprotected area of northern Botswana is unknown, and may never be known. Media speculations about it ignore ecological realities. Worse, they make ...
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(International Association for Plant Taxonomy, 2016-10)No abstract available.
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(Studia Universitatis Babes-Bolyai, 2018)Climate records along aridity gradients where manifestations of climate change are most profound are important for testing climate models. The Kalahari Transect spans such a gradient, but instrumental records of ...
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(International Association for Plant Taxonomy, 2022-06)No abstract available.
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(International Union of Crystallography, 2012-07-02)The asymmetric unit of the title salt, C6H20N4 2+ 2I , comprises half a 3,6-diazaoctane-1,8-diaminium dication plus an I anion. The dications are symmetrical and lie across crystallographic centres of inversion. In ...
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(International Union of Crystallography, 2010)A fundamental understanding of the role of oxyanion geometry on molecular packing and non-covalent interactions in salt crystal structures is central to the fields of both molecular recognition and crystal engineering. The ...
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(Health and Medical Publishing Group, 2016-09)The International Agency for Research on Cancer (IARC) was founded on 20 May 1965. For the past 50 years, the IARC has served as the specialised cancer research unit of the World Health Organization. The IARC strives ...
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(Academy of Science of South Africa, 2019-09)The annual Lindau Nobel Laureate Meeting is an extremely prestigious 1-week event at which bright young scientists from across the globe are able to meet Nobel laureates to discuss matters of science. These meetings were ...
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(South African Statistical Association, 2015)Microarray experiments help scientists to study the expression level of thousands of genes simultaneously. These experiments have many design challenges, such as, for example, which mRNA samples should be co-hybridized ...
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(Plaas Publishing, 2016-12)Daar is een fundamentele lewensproses wat alle lewende organismes onderhou en slegs in groen plante voorkom, naamlik fotosintese - 'n proses wat suurstof (O2) in die atmosfeer vrystel en koolstofdioksied (CO2) tydens die ...
Now showing items 1-20 of 4982