Results 81 to 90 of about 2,938,145 (305)

ASTERACEAE

Bothalia: African Biodiversity & Conservation, 2002
A NEW SPECIES OF ARCTOTHECA FROM NORTHERN CAPE.
J. B. P. Beyers
doaj   +1 more source

Metal Battery Anode: Rich in Electrons, Rich in Problems: A Critical Review from Industrial Perspectives

Advanced Science, EarlyView.
Metal‐anode batteries using Li, Na, Mg, and Ca offer exceptionally high energy density, but dendrites, unstable interphases, cracking, and pore formation hinder durability and safety. This review shows how careful electrolyte and interphase design can stabilize these reactive metals.
Jian Pan, Chan Shu, Oscar Tutusaus, Rana Mohtadi   +3 more
wiley   +1 more source

Migration of black terns Chlidonias niger and common terns Sterna hirundo between south Sweden and the Atlantic coast of Africa

Journal of Avian Biology
Light‐level geolocators were used to record the annual migration cycles of black terns Chlidonias niger (9 individuals, 11 journeys) and common terns Sterna hirundo (7 individuals, 11 journeys) breeding in southernmost Sweden.
Thomas Alerstam, Johan Bäckman, Johanna Grönroos, Patrik Olofsson, Roine Strandberg, Sissel Sjöberg   +5 more
doaj   +1 more source

Fluoride Levels in Surface and Groundwater in Africa: A Review

, 2017
Fluoride has been reported to be among natural pollutant of water in Africa. High fluoride levels beyond the recommended World Health Organization limit of 1.5 mg/l has been observed in various Africa countries.
Jovine Malago, Edikafubeni E. Makoba, A. Muzuka   +2 more
semanticscholar   +1 more source

Integrated Single‐Cell and TCR Profiling Reveals Protection‐Associated CD8+ T Cell Subsets Linked to Viral Control in PRRSV

Advanced Science, EarlyView.
PRRSV vaccine‐mediated protection is associated with clonally expanded cytotoxic CD8+ T cell subsets driven by viral structural proteins and supported by innate TLR4/TLR8 signaling and CD4+ T cell help, whereas non‐protective responses are characterized by dysfunctional exhausted‐like CD8+ T cells linked to poor viral control.
Can Kong, Siang Chen, Maolin Li, Meng Wang, Hailin Zhang, Bolun Zhou, Zhenhua Xie, Chen Wang, Peng Gao, Jianjun Luo, Hanchun Yang, Runsheng Chen, Dongdong Zhang, Jie Li, Jun Han   +14 more
wiley   +1 more source

Arid, mosaic environments during the Plio-Pleistocene transition and early hominin dispersals in northern Africa

Nature Communications
The earliest archaeological evidence from northern Africa dates to ca. 2.44 Ma. Nevertheless, the palaeoenvironmental setting of hominins living in this part of the continent at the Plio-Pleistocene transition remains poorly documented, particularly in ...
Iván Ramírez-Pedraza, Carlos Tornero, Hassan Aouraghe, Florent Rivals, Robert Patalano, Hamid Haddoumi, Isabel Expósito, Antonio Rodríguez-Hidalgo, Steffen Mischke, Jan van der Made, Pedro Piñero, Hugues-Alexandre Blain, Patrick Roberts, Deepak Kumar Jha, Jordi Agustí, Christian Sánchez-Bandera, Abdelkhalek Lemjidi, Alfonso Benito-Calvo, Elena Moreno-Ribas, Aïcha Oujaa, Hicham Mhamdi, Mohamed Souhir, Al Mahdi Aissa, M. Gema Chacón, Robert Sala-Ramos   +24 more
doaj   +1 more source

REVOLUTIONS FROM NORTHERN AFRICA: A GRAND QUESTION FOR MANKIND? [PDF]

Annals of the University of Petrosani: Economics, 2011
The spring of the indignations against the presidents of the North African states and in the Middle East has aroused worldwide interest, not only in terms of their political effects in those states, but rather in terms of how these events have been ...
CIPRIAN NIMARĂ, GRIGORE BUIA
doaj  

Rainfall Shapes the Diversity of Soil Nitrogen‐Fixing Microorganisms Worldwide

Advanced Science, EarlyView.
This study reveals the distinctive pattern and mechanism of rainfall driving the global biodiversity and biogeography of soil potential N‐fixing microorganisms, and constructs the theoretical framework. The results guide us on how to maintain ecosystem productivity under future climate changes (e.g., whether a specific region needs more N fertilizers ...
Bin Hua, Shuang Pang, Ang Li, Zonghao Hu, Honghui Wu, Shuhan Zhang, Yi Fan, Yi Wu, Wei Yang, Yachao Zhao, Yupeng Guan, Baoming Ji, Deliang Kong, Yong Zhao, Anton A. Goncharov, Anastasia Yu. Korotkevich, Rong Mao, Yang Zhang, Ximei Zhang   +18 more
wiley   +1 more source

Linking horizontal and vertical transports of biomass fire emissionsto the tropical Atlantic ozone paradox during the Northern Hemisphere winter season: climatology [PDF]

Atmospheric Chemistry and Physics, 2004
During the Northern hemisphere winter season, biomass burning is widespread in West Africa, yet the total tropospheric column ozone values (
G. S. Jenkins, J.-H. Ryu
doaj  

An ethnobotanical survey of the Agter-Hantam, Northern Cape Province, South Africa

, 2011
The use of a rapid appraisal methodology, followed by a new approach that we refer to as the Matrix Method, has revealed a wealth of traditional knowledge on useful plants amongst people of Khoi–San decent in the Agter–Hantam, Calvinia district, Northern
J. Beer, B. Wyk
semanticscholar   +1 more source