Results 71 to 80 of about 1,110,435 (297)

Astrophysics in Southern Africa

, 2007
The government of South Africa has identified astronomy as a field in which their country has a strategic advantage and is consequently investing very significantly in astronomical infrastructure. South Africa now operates a 10-m class optical telescope,
Hakeem M. Oluseyi, Patricia Whitelock
core   +1 more source

Pan‐3D Genome Analysis Reveals the Roles of Structural Variation in Chicken Chromatin Architectures, Domestication and Production Traits

Advanced Science, EarlyView.
This study firstly presents a comprehensive and high‐resolution pan‐3D genome resource in chicken. Our findings reveal the role of structural variations in 3D genome architectures, and how they influence the domestication process and production traits at the 3D genome level.
Zhen Zhou, Danfeng Cai, Changbin Zhao, Siyu Zhang, Jiahao Li, Zhaofeng Zhang, Shaofen Kong, Xin Yang, Xiaoli Zhou, Farhad Bordbar, Fayi Chen, Yaohuan Xu, Zhe Zhang, Lihong Gu, Zhenhui Li, Xiquan Zhang, Wen Luo, Jingting Shu, Bolin Cai, Qinghua Nie   +19 more
wiley   +1 more source

Aloe tomentosa - a species with unusual hairy flowers from the Yemen [PDF]

, 2016
Aloe tomentosa is unusual within the huge diversity of this large genus, since it is one of a small group with hairy flowers that have a limited distribution in the Horn of Africa and southern ...
Walker, Colin
core  

Global Nitrogen Deposition Promotes Carbon Sink Formation in Terrestrial Ecosystems

Advanced Science, EarlyView.
Nitrogen deposition alleviates ecosystem N limitation and enhances carbon sinks. Using 829 observations, we show 36% of deposited N is retained globally (39.15 Tg N yr−1), with distinct NHx and NOy contributions. This retention drives a terrestrial C sink of 0.88 Pg C yr−1 (25.48%), highlighting the importance of pool‐specific C:N stoichiometry ...
Lei Li, Mingyu Xie, Nan Jia, Li‐Dong Mo, Qiang Yu, Fanjiang Zeng, Xiangyi Li   +6 more
wiley   +1 more source

Barriers to Implementing the International Integrated Reporting Framework: A Contemporary Academic Perspective [PDF]

, 2017
Purpose: This paper is motivated by the International Integrated Reporting Council’s (IIRC) call for feedback from all stakeholders with knowledge of the International Integrated Reporting Framework , and specifically of the enablers, incentives and ...
ASX Corporate Governance Council (ASX CGC), Black Sun, Frank Bold, GRI and Global Sustainability Standards Board, Institute of Directors in Southern Africa (IoDSA), Institute of Directors in Southern Africa (IoDSA), Institute of Directors in Southern Africa (IoDSA), International Integrated Reporting Council (IIRC), International Integrated Reporting Council (IIRC), International Integrated Reporting Council (IIRC), Johannesburg Stock Exchange (JSE), World Intellectual Capital Initiative   +11 more
core   +1 more source

Oil‐Coated Nanoplastics Induce Rapid Membrane Disruption and Severe Intestinal Injury

Advanced Science, EarlyView.
Oil‐rich food contact dramatically amplifies MNP release from plastic takeout containers, producing oil‐coated nanoplastics with altered surface properties and rapid membrane‐disruptive effects. These particles cause severe intestinal barrier damage and immune dysfunction in mice, and risk modeling suggests that long‐term gastrointestinal burdens may ...
Ruwen Xie, Gulimire Yilihan, Qiong Chen, Dachuan Lin, Zhen Liu, Mengyi Yuan, Yujia Wang, Haoteng Xu, Weishang Zhou, Wanxin Gong, Yueer Li, Chen Peng, Tong Yang, Peng Gao, Qing Liu, Xin‐Hua Feng, Mu Xiao, Chao Jiang   +17 more
wiley   +1 more source

The Southern African Stone Age Site Index (SASSI): A Spatial, Chronological and Contextual Resource for Archaeological Research

Journal of Open Archaeology Data
Southern Africa possesses a deep archaeological record, spanning more than a million years, which has attracted over a century of research. As a result, it offers one of the densest and most detailed pictures of Stone Age occupation history in Africa ...
Emily Hallinan
doaj   +1 more source

Measles in HIV-infected children in southern Africa

South African Family Practice, 2012
In recent years, southern Africa has experienced a widespread measles outbreak. Given the high human immunodeficiency virus (HIV) prevalence in the region, the particular features of measles in HIV-infected individuals are of interest to clinicians ...
A.M. Sheikh, P. Patel, L. Scherzer, C.P. Neumann, G. Anabwani, M.A. Tolle   +5 more
doaj   +1 more source

Southern African Economic Integration: Evidence from an Augmented Gravity Model [PDF]

This paper investigates the feasibility of creating a common-currency union consisting of 16 countries in Southern Africa. We estimate an augmented-gravity model that includes public deficit, public debt, public expenditure, inflation, and the foreign ...
Tengia, Optat, Wandschneider, Kirsten, Warin, Thierry, Wunnava, Phanindra V.   +3 more
core  

Two stapelias: Stapelia gigantea and S. schinzii var. angolensis [PDF]

, 2017
Two contrasting species of Stapelia are described from the plant family the Apocynaceae. Stapelia gigantea produces some of the largest flowers of any flowering plant, being up to 40 cm in diameter.
Walker, Colin C.
core