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Now showing items 25879-25898 of 35397
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Population dynamics and integrated management of Prostephanus truncatus (Coleoptera : Bostrichidae) in Manica Province, Mozambique
(North-West University (South Africa), 2017)The Larger grain borer, Prostephanus truncatus (Coleoptera: Bostrichidae), was introduced from Southern and Central America into Africa during the late 1970s, and has since then established in 20 African countries. This ... -
Population dynamics of Meloidogyne graminicola and Hirschmanniella oryzae in a double rice-cropping sequence in the lowlands of Myanmar
(Brill Academic Publishers, 2013)The rice root-knot nematode, Meloidogyne graminicola, and the rice root nematode, Hirschmanniella oryzae, are considered potentially important nematode pathogens in lowland rice. A study was undertaken from December 2009 ... -
Population dynamics of Meloidogyne spp. and the effect of pre-plant practices on the pest in tomato net houses in South Africa
(North-West University (South Africa), 2020)In South Africa, the largest tomato producer, ZZ2, practices extensive monocropping under net house structures. These net houses allow the farmer prolonged harvest and good quality yields, however, they also provide ideal ... -
Population dynamics of mites (Acari) on Diospyros kaki Thunb. and Diospyros lotus L. (Ebenaceae) trees in Ordu, Turkey
(Systematic and Applied Acarology Society, 2016)Populations of mites (Phytoseiidae, Stigmaeidae, Cunaxidae, Cheyletidae, Tenuipalpidae, Tarsonemidae, Tydeidae, Acaridae) were monitored on Diospyros kaki Thunb. and Diospyros lotus L. (Ebenaceae) in Ordu, Turkey during ... -
Population dynamics of translocated Frithia humilis : an endangered sandstone endemic
(North-West University (South Africa). Potchefstroom Campus, 2017)Frithia humilis Burgoyne is an endangered succulent and edaphic specialist that is endemic to the Rand Highveld Grassland between the towns of Middelburg, eMalahleni (Witbank) and Bronkhorstspruit. The species is restricted ... -
A population of gamma-ray emitting globular clusters seen with the Fermi Large Area Telescope
(EDP Sciences, 2010)Context. Globular clusters with their large populations of millisecond pulsars (MSPs) are believed to be potential emitters of high-energy gamma-ray emission. The observation of this emission provides a powerful tool to ... -
A population of gamma-ray millisecond pulsars seen with the Fermi Large Area Telescope
(AAAS, 2009)Pulsars are born with subsecond spin periods and slow by electromagnetic braking for several tens of millions of years, when detectable radiation ceases. A second life can occur for neutron stars in binary systems. They ... -
The population of TeV pulsar wind nebulae in the H.E.S.S. Galactic Plane Survey
(EDP Sciences, 2018)The nine-year H.E.S.S. Galactic Plane Survey (HGPS) has yielded the most uniform observation scan of the inner Milky Way in the TeV gamma-ray band to date. The sky maps and source catalogue of the HGPS allow for a systematic ... -
Population pharmacokinetic and pharmacodynamic study of efavirenz in HIV–1–infected children treated with first line antiretroviral therapy in South Africa
(North-West University, 2011)Highly active antiretroviral therapy (HAART) has improved the life expectancy of HIV–1–infected patients dramatically since it was launched in 1996, but there are still many challenges in the provision of HAART, especially ... -
Population responses of plant-parasitic nematodes in selected crop rotations over five seasons in organic cotton production
(Organization Trop Amer Nematologists, 2015)Crops with resistance or tolerance to the root-knot nematode, Meloidogyne incognita race 4, were evaluated for management of plant-parasitic nematodes in organic cotton production for five consecutive seasons. During the ... -
Population studies on the mesofauna of compost, with special reference to the parasitoid mesostigmata [Acari]
(North-West University (South Africa), 1967)"Abstract not copied" -
Population study of Galactic supernova remnants at very high γ-ray energies with H.E.S.S.
(EDP Sciences, 2018)Shell-type supernova remnants (SNRs) are considered prime candidates for the acceleration of Galactic cosmic rays (CRs) up to the knee of the CR spectrum at E ≈ 3 × 1015 eV. Our Milky Way galaxy hosts more than 350 SNRs ... -
Population vulnerability and disaster risk reduction: a situation analysis among the landslide affected communities in Kerala, India
(AOSIS OpenJournals, 2010)Landslides affect at least 15% of the land area of India, exceeding 0.49 million km2. Taking the case of landslide affected communities in the state of Kerala in India, this paper demonstrates that the focus has seldom ... -
Population-, sex- and individual level divergence in life-history and activity patterns in an annual killifish
(PeerJ, 2019)Variation in life-history strategies along a slow-fast continuum is largely governed by life-history trade-offs. The pace-of-life syndrome hypothesis (POLS) expands on this idea and suggests coevolution of these traits ... -
Pore development during gasification of South African inertinite-rich chars evaluated using small angle X-ray scattering
(Elsevier, 2015)Pore development arising from steam and CO2 gasification of a char, prepared from an inertinite-rich Witbank Seam 4 coal, was investigated using small angle X-ray scattering. The char, ∼75 μm, was gasified to specific ... -
Porous structure of cylindrical packed beds with aspect ratios between 1 and 2
(Elsevier, 2020)The paper provides a comprehensive summary of the analysis of the porous structure of cylindrical packed beds with aspect ratios between 1 and 2. For the first time a proper geometrical explanation is given for the shape ... -
Porphyrins as corrosion inhibitors for N80 Steel in 3.5% NaCl Solution: electrochemical, quantum chemical, QSAR and Monte Carlo simulations studies
(MDPI, 2015)The inhibition of the corrosion of N80 steel in 3.5 wt. % NaCl solution saturated with CO2 by four porphyrins, namely 5,10,15,20-tetrakis(4-hydroxyphenyl)-21H,23H-porphyrin (HPTB), 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphyrin ... -
The Port Alfred floods of 17–23 October 2012: A case of disaster (mis)management?
(AOSIS Publishing, 2016)An intense cut-off low weather system, more commonly known regionally as a ‘black southeaster’, caused severe flooding in Port Alfred and the surrounding coastal areas from 17 to 23 October 2012. Unconfirmed reports of ... -
Portability of social security benefits of circular migrant workers in selected SADC member states
(North-West University (South Africa), 2020)The issue of portability of social security benefits is a daunting issue facing migrant workers in both Southern Africa and the world in general. In the Southern African Development Community region migration seems to be ...