Results 1 to 10 of about 2,868 (182)

Unveiling 2,000 years of differentiation among Tungusic-speaking populations: a revised phylogeny of the paternal founder lineage C2a-M48-SK1061 [PDF]

open access: yesFrontiers in Genetics, 2023
Previous studies demonstrated Y chromosome haplogroup C2a-M48-SK1061 is the only founding paternal lineage of all Tungusic-speaking populations. To infer the differentiation history of these populations, we studied more sequences and constructed ...
Xianpeng Zhang   +2 more
exaly   +4 more sources

WIYN Open Cluster Study 89. M48 (NGC 2548) 2: Lithium Abundances in the 420 Myr Open Cluster M48 from Giants through K Dwarfs* †

open access: yesAstrophysical Journal, 2023
We consider WIYN/Hydra spectra of 329 photometric candidate members of the 420 Myr old open cluster M48 and report lithium detections or upper limits for 234 members and likely members.
Qinghui Sun   +2 more
exaly   +2 more sources

Phylogeographic analysis of Y-chromosomal haplogroup C2a-M48-F8472, a minor paternal lineage of Han populations with possible ancestry of Xiongnu

open access: yesAnnals of Human Biology
Background Y-chromosome haplogroup C2a-M48-F8472, a unique paternal line in the ancient Xiongnu population, is concentrated in the modern Han people. The most closely related lineage of this paternal lineage is mainly distributed in Tungusic-, Mongolic-,
Xianpeng Zhang, Jin Sun, Lan-Hai Wei
exaly   +3 more sources

Hidden Xyloglucan Architecture of the Pollen Intine in Gagea lutea Revealed by Sequential Enzymatic Unmasking [PDF]

open access: yesBiology
The organisation of hemicelluloses within the pollen intine of many monocots remains inadequately characterised, partly due to the masking of epitopes within complex wall matrices. In this study, mature pollen grains of Gagea lutea (L.) Ker-Gawl.
Małgorzata Kapusta   +2 more
doaj   +2 more sources

Study on Improving the Cadmium Removal Ability of Recombinant Pichia kudriavzevii M48 Overexpressed MET14 Gene Based on Medium Optimization

open access: yesShipin gongye ke-ji, 2022
In this study, the culture medium of a recombinant Pichia kudriavzevii M48 overexpressed MET14 gene with high cadmium resistance and cadmium removal rate was optimized.
Wanying XU   +3 more
doaj   +1 more source

Phospholipids induce conformational changes of SecA to form membrane-specific domains: AFM structures and implication on protein-conducting channels. [PDF]

open access: yesPLoS ONE, 2013
SecA, an essential component of the Sec machinery, exists in a soluble and a membrane form in Escherichia coli. Previous studies have shown that the soluble SecA transforms into pore structures when it interacts with liposomes, and integrates into ...
Zhipeng You   +7 more
doaj   +1 more source

Board governance quality and risk disclosure compliance among financial institutions in Uganda [PDF]

open access: yesJournal of Asian Business and Economic Studies, 2021
Purpose – This paper aims to examine the impact of board governance quality (BGQ) and its mechanisms, namely board activity, board independence, board communication and board expertise, on the level of risk disclosure compliance (RDC) among financial ...
Geofrey Nkuutu   +4 more
doaj   +1 more source

Risk assesment as a stage of risk management in enterprise in tourism sector

open access: yesFinancial Internet Quarterly, 2023
Risk management is a complex process that requires company managers to have very good knowledge of its organizational structure on the one hand and on the other hand, in order to achieve a good management, it is necessary for the respective manager to ...
Nedyalkova Plamena
doaj   +1 more source

Does the IFRS 16 affect the key ratios of listed companies? Evidence from Poland

open access: yesInternational Journal of Management and Economics, 2022
The paper aims to assess the International Financial Reporting Standard (IFRS) 16 “Leases” impact on the lessees’ financial situation. The study was conducted on the financial data for 2018–2019 of 494 companies listed on the Warsaw Stock Exchange using ...
Białek-Jaworska Anna   +2 more
doaj   +1 more source

The Simplification of Public Administration: A Managerial Perspective

open access: yesNaše Gospodarstvo, 2022
The paper addresses the issue of complexity in the administrative processes of public institutions: in particular, accounting routines and processes are examined.
Modugno Guido   +2 more
doaj   +1 more source

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