Results 21 to 30 of about 54,255 (262)

The relative importance and biological significance of non-stop and intermittent flight strategies in bird migrants crossing the Sahara [PDF]

open access: yes, 2007
IX Summary The aim of this thesis was to investigate the flight and resting strategies of birds crossing the Sahara on migration. In order to overcome the severe limitations of ground observations, we chose radar to obtain continuous data of the temporal
Schmaljohann, Heiko
core   +1 more source

The chronology of the Neolithic in Northwest Africa

open access: yesУченые записки Казанского университета: Серия Гуманитарные науки, 2022
This article considers the chrono-cultural evolution in the Northwest Africa territories during the Neolithic period. A systematic chronology based on specialized literature on the chrono-cultural features of this period in the Sahara and the Maghreb was
S. Si-Ammour
doaj   +1 more source

Inquiries into the Consequences of Planetary-Scale Impacts and the Implications of Carbonates in the Hyper-Arid Core of the Sahara [PDF]

open access: yes, 2010
This thesis focuses on the geophysical and morphological consequences of planetary-scale impacts – the last remnants of planetary accretion. In this size regime, the impact crater size is a significant fraction of the size of the planet, and the finite ...
Marinova, Margarita M.
core   +1 more source

Coexistence of adenocarcinoma colon with pseudomembraneous colitis

open access: yesJournal of Digestive Endoscopy, 2013
We report a 62 year old man who had coexistence of pseudomembraneous colitis and adenocarcinoma sigmoid colon in the absence of any antibiotic therapy. This is the first report of coexistence of both these conditions in the same patient.
Sanjay Kumar Somani   +2 more
doaj   +1 more source

Assessment of the Risk Factors of Hypertension Among Adults in Pakistan

open access: yesPakistan Armed Forces Medical Journal, 2023
Objective: Toevaluate the distribution of risk factors and determined their association with hypertension in Pakistani population. Study Design: Prospective longitudinal study.
Muhammad Tariq   +7 more
doaj   +1 more source

Dust mobilization and transport in the northern Sahara during SAMUM 2006 � a meteorological overview [PDF]

open access: yes, 2009
The SAMUM field campaign in southern Morocco in May/June 2006 provides valuable data to study the emission, and the horizontal and vertical transports of mineral dust in the Northern Sahara.
Wendisch, M.   +33 more
core   +1 more source

Polyphenols Content and Antimicrobial, Antioxidant and Hemolytic Activities of Essential Oils from Four Selected Medicinal Plants Growing in Algeria

open access: yesBiology, Medicine & Natural Product Chemistry, 2020
The Saharan and steppe spontaneous plants are very characteristic because of their particular adaptation to the desert and extreme environment. Some species have pharmacological properties that give them a medicinal interest.
Noureddine Halla   +9 more
doaj   +1 more source

First Case of Leucism in the House Bunting Emberiza Sahari in Algeria

open access: yesJournal of Bioresource Management, 2022
Continue to monitor the bioecology of the House bunting in Algeria and mentioned the birds that carry abnormalities and genetic mutation (Albinism and leucism), including passerines species.
Abdelwahab Chedad   +3 more
doaj  

Feeding Specialization of Honey Badgers in the Sahara Desert: A Trial of Life in a Hard Environment

open access: yesDiversity, 2020
The honey badger (Mellivora capensis) is a medium-sized carnivore distributed throughout Africa to the Arabian Peninsula, Iran, Turkmenistan, and India. However, available information on its ecology is very scarce.
Jose María Gil-Sánchez   +19 more
doaj   +1 more source

Hybridités sahariennes : étude du Désert d’Étienne Dinet et Sliman Ben Ibrahim [PDF]

open access: yesRevue Roumaine d’Etudes Francophones, 2020
At the junction between the literary geography and the analysis of imperialism in literature, this study explores the ways Sahara and its inhabitants are represented in El Fiafi oua el Kifar ou le Désert (1911), a book written by Étienne Dinet and ...
Adrien BODIOT
doaj  

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