144 research outputs found
Review of Lyme Borreliosis in Africa—An Emerging Threat in Africa
No full textLyme borreliosis (LB) is more common in the Northern Hemisphere. It is endemic mainly in North America, where the vectors are Ixodes scapularis and Ixodes pacificus, and in Eurasia, where the vectors are Ixodes ricinus and Ixodes persulcatus. Both tick-borne diseases and LB are influenced by climate change. Africa and South America are crossed by the equator and are situated in both the Northern and Southern Hemispheres. In Africa, the LB is present on the Mediterranean and the Indian Ocean coasts. Borrelia lusitaniae is prevalent in countries bordering the Mediterranean Sea, such as Tunisia, Morocco, Algeria, and Egypt. Ticks were detected in the Ixodes Ricinus, which are carried by migratory birds and the Ixodes inopinatus and captured by the Psammodromus algirus lizards. The Borreliae Lyme Group (LG) and, in particular, Borrelia garinii, have been reported in countries bordering the Indian Ocean, such as Kenya, Tanzania, and Mozambique, transported by migratory birds from North African countries, where the vector was identified as Hyalomma rufipes ticks. This review aims to document the presence of Borreliae LG and LB in Africa
Spirit Poles and Flying Pigs : Public Art and Cultural Democracy in American Communities
No full textDoss examines the way in which public art is a site of conflict and a symbol of struggle in cultural democracy by analysing in detail seven specific projects, the controversies surrounding them, and the reasons behind their failure. Doss argues that public art is most effective when it is linked to a notion of a public sphere that involves, at every level, the community in which the project is based. Index, 4 p. Biographical notes on the author. Circa 325 bibl. ref
Dutch Open Student STEEL (DOSS) Award 2021
No full textEditorialGreen Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Steel & Composite Structure
Off Center Effect on the Photoabsorption Spectrum of the Xe@C60 Endohedral Fullerene
No full textDOSs of Xe atom located at different distances from the C60 center have been evaluated. The results indicate that the main confinement resonances result only when the Xe atom is within about 0.3 ?A around the center of C6
2nd International Meeting, Palestinian Society of Dermatology and Venereology, Ramallah, April 21-24, 2011
No full textTheoretical investigation of X<sub>12</sub>O<sub>12</sub> (X = Be, Mg, and Ca) in sensing CH<sub>2</sub>N<sub>2</sub>: A DFT study
No full textThe feasibility of detecting diazomethane (CH2N2) in the gas phase by adsorption onto the exterior surface of inorganic-based X12O12 (where X can be Be, Mg, or Ca) nanocages is investigated here using DFT. All the structures, including those of the pristine CH2N2 and of the nanocages, as well as of the CH2N2/nanocage systems, have been optimized using the B3LYP-D3, M06-2X, ωB97XD, and CAM-B3LYP functionals, in conjunction with 6-311G(d) basis set. NBO, NCI, and QTAIM analyses results are in good agreement with each other. Furthermore, the Density Of States (DOSs), the natural charges, the Wiberg Bond Indices (WBI), and natural electron configurations were considered to investigate the nature of intermolecular interactions. The energy calculations indicate a strong size-dependent adsorption, with the nanocages comprised of large atoms being able to attract CH2N2 more strongly, and hence bind with it more effectively. The adsorption incurs also significant changes to HOMO and LUMO energies.Accepted Author ManuscriptAtmospheric Remote Sensin
Performance of Middle-Eastern Alfalfa ecotypes in the Southwestern USA using traditional and contemporary harvest management practices
No full textNon-winterdonnant alfalfa (Medicago sativa L) from the Middle East regrows rapidly and<br>produces high forage yield making it attractive for use in wann-desert regions. In the Middle East, alfalfa<br>is commonly harvested before flowering (bud stage) leaving less than 2 cm stubble. Alfalfa from this reg-ion<br>has unique adaptations to this management and regrow predominately from meristems originating<br>near the stem base. Harvest management may influence productivity of Middle-Eastern alfalfas in<br>mechanized agriculture where late harvest and cutting heights between 8 and 12 cm predominate. We<br>compared yield, persistence, and crown architecture of six Middle-Eastern alfalfa ecotypes under tradi-tional<br>(preflowering + 2 cm stubble) and contemporary harvest management (10% bloom + 10 cm stub-ble),<br>and a combined regime (preflowering + 10 cm stubble) in a 27-month trial in Arizona. Contempo-rary<br>harvest management resulted in significantly higher forage yield in the Middle-Eastern accessions<br>than in either of the other regimes and did not disturb the initiation of regrowth stems. Forage yields of<br>the most productive Middle-Eastern ecotype were 11 to 20% higher than an elite southwestern cultivar<br>regardless of harvest regime. The combined regime, with its higher forage quality, may be preferred as<br>Middle-Eastern alfalfas are utilized in mechanized agriculture.Corresponding Author:
Dr. Abdullah Abdulaziz Al-Doss, Professor
Plant Production Dept. Collage of Food & Agric. Sciences, P.O. Box 2460 Riyadh-11451, Saudi Arabia
Email [email protected]
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