Results 51 to 60 of about 298,511 (312)
American Journal of Botany, EarlyView.Abstract Premise We examined the African arid corridor (AAC) disjunction pattern of vascular plants between northeastern and southwestern Africa in the context of geological and climatic events since the late Miocene. We developed a phylogenetic and biogeographical framework for the arid‐adapted genus Sesamothamnus (Pedaliaceae), a classic example of ...
John G. Zaborsky +6 more
wiley +1 more source
THE CONTRIBUTION OF THE DOMESTICATED CAMEL AND ADVANCED IRRIGATION TECHNIQUES (THE HORIZONTAL WELL/FALAJ SYSTEM) TO THE IRON AGE ECONOMY AND SETTLEMENT PATTERNS OF THE OMAN PENINSULA AND ARABIA. [PDF]
Journal of the General Union of Arab Archaeologists, 2019 Iron Age II is considered the classical period of the Iron Age (figure: 2(1) ). This period shows sudden increase in distribution and diversification in settlement pattern, in South-eastern Arabia (2) .
Noha Moussa
doaj +1 more source
Wintering Birds in Northern Saudi Arabia: February 2009 [PDF]
, 2011 The northern plains of Saudi Arabia are an area of approximately 231,000 km2, or roughly equivalent to the size of the whole of the United Kingdom. During previous ABBA Surveys in this area in late winter and spring significant numbers of wintering ...
Abu Qabous, Baleegh +3 more
core
Britain’s decision to withdraw from the Persian Gulf: a pattern not a puzzle [PDF]
, 2015 The reasons for the British decision to withdraw from the Gulf are highly contentious. While some scholars have focused on short-term considerations, especially the devaluation of sterling towards the end of 1967, in the British determination to quit the
Smith, Simon C.
core +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Ag–Fe bimetallic nanoparticles (alloy and core–shell structures) were synthesized using Grewia optiva leaf extract through a green, phytochemical‐mediated approach. The effects of pH, temperature, extract concentration, and Ag:Fe molar ratio on nanoparticle formation were systematically optimized, enabling size‐controlled and morphologically ...
Sehrish Asad +6 more
wiley +1 more source
Pseudoexfoliation cataract: possible systemic associations
Delta Journal of Ophthalmology, 2016 Aim The aim of this study was to report the prevalence and possible systemic associations of pseudoexfoliation syndrome (PXF) in patients with age-related cataract scheduled for surgery in Najran District, South Saudi Arabia. Patients and methods In this
Ahmed F Gabr
doaj +1 more source
Cenozoic evolution of Neotethys and implications for the causes of plate motions [PDF]
, 2003 Africa-North America-Eurasia plate circuit rotations, combined with Red Sea rotations and new estimates of crustal shortening in Iran define the Cenozoic history of the Neotethyan ocean between Arabia and Eurasia. The new constraints indicate that Arabia-
McQuarrie, N. +3 more
core +2 more sources
Global burden of human brucellosis : a systematic review of disease frequency [PDF]
, 2012 BACKGROUND: This report presents a systematic review of scientific literature published between 1990-2010 relating to the frequency of human brucellosis, commissioned by WHO.
A El Sherbini +40 more
core +4 more sources
A Hybrid Semi‐Inverse Variational and Machine Learning Approach for the Schrödinger Equation
Advanced Physics Research, EarlyView.A hybrid semi‐inverse variational and machine‐learning framework is presented for solving the Schrödinger equation with complex quantum potentials. Physics‐based variational solutions generate high‐quality training data, enabling Random Forest and Neural Network models to deliver near‐perfect energy predictions.
Khalid Reggab +5 more
wiley +1 more source