Articles by Author: Elfatih Abdel Rahman

Search results for Elfatih Abdel Rahman

We found 13 results for you
  1. Determining the optimal phenological stage for predicting common dry bean (<em>Phaseolus vulgaris</em>) yield using field spectroscopy

    Determining the optimal phenological stage for predicting common dry bean (<em>Phaseolus vulgaris</em>) yield using field spectroscopy

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    On-farm crop productivity and yield prediction are valuable for, among others, designing food policies, on-farm and after-farm planning and pricing, and marketing. Whereas existing prediction approaches are generally reliable, these require extensive and tedious field surveys and adequate ancillary agrometeorological...
  2. Estimation of thrips (<em>Fulmekiola serrata</em> Kobus) density in sugarcane using leaf-level hyperspectral data

    Estimation of thrips (<em>Fulmekiola serrata</em> Kobus) density in sugarcane using leaf-level hyperspectral data

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The aim of this study was to investigate the potential use of leaf-level hyperspectral data to predict the density of sugarcane thrips Fulmekiola serrata (Kobus). A hand-held spectroradiometer was used to make the spectral measurements on spindle leaves of 4-...
  3. Water cytotoxicity and dioxins bioaccumulation in an Egyptian delta wetland ecosystem

    Water cytotoxicity and dioxins bioaccumulation in an Egyptian delta wetland ecosystem

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Manzala Lake, as one of the main Egyptian wetland ecosystems, is facing risks of pollution. An in vitro cytotoxicity test using a mammalian cell line was employed to determine the toxicity of multiple pollutants in the water and Tilapia zillii...
  4. A Q-EXTENSION OF A PRODUCT FORMULA OF WATSON

    A Q-EXTENSION OF A PRODUCT FORMULA OF WATSON

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    A q-analogue of a formula of G.N. Watson that gives the product of two non-terminating Gaussian hypergeometric functions as a sum of two F 4 Appell series is obtained. of the many possible q-extensions of the 2 F1 function,...
  5. Spatial quality improvement of a toxic industrial effluent, based on physico-chemistry, algal community changes and algal bioassay

    Spatial quality improvement of a toxic industrial effluent, based on physico-chemistry, algal community changes and algal bioassay

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Spatial recovery of a highly alkaline and ammonia-rich industrial effluent was assessed along a wastewater receiving drain near Mansoura City in 2006. Spatial changes in physico-chemical characteristics and water quality index indicated a progressive downstream improvement of wastewater quality, and...
  6. Cervical plexus block for thyroidectomy

    Cervical plexus block for thyroidectomy

    Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia
    Objective: Thyroidectomy is traditionally performed under general anaesthesia with endotracheal intubation. However, cervical plexus block has also been found useful for this operation in some parts of the world. This particular anaesthetic option has never been reported in our environment...
  7. Characterising the diameter distribution of Sal plantations by comparing normal, lognormal and Weibull distributions at Tilagarh Eco-park, Bangladesh

    Characterising the diameter distribution of Sal plantations by comparing normal, lognormal and Weibull distributions at Tilagarh Eco-park, Bangladesh

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    For many years foresters have been using statistical probability density functions to describe and characterise stand structure. Predicting the current and future yields of a stand is essential for successful stand and timber management. Implicit prediction of current yield is...