Results 61 to 70 of about 618,055 (243)

Nonconventional Techniques in Plant Alkaloid Extraction: A Decade of Progress (2014–2023)

open access: yesChemistry &Biodiversity, EarlyView.
This figure seeks to represent the evolution of the different unconventional approaches that were adopted for the extraction of plant‐derived alkaloids during the decade from 2014 to 2023. ABSTRACT Plant metabolism encompasses primary and secondary pathways, with secondary metabolism yielding diverse natural products crucial for plant adaptation and ...
Victor Menezes Sipoloni   +5 more
wiley   +1 more source

Trade and Empire, 1700-1870 [PDF]

open access: yes
This paper surveys the rise and fall of the European mercantilist system, and the transition to the modern, well-integrated international economy of the 19th century.
Guillaume Daudin   +2 more
core   +3 more sources

Eugenia brasiliensis: Analysis of the Chemical Profile and Evaluation of Cytotoxic Potential

open access: yesChemistry &Biodiversity, EarlyView.
Leaves of Eugenia brasiliensis were dried, crushed and macerated with polarity increment. The antiporliferative and anti‐migratory potential and the cell cycle were evaluated. 28 compounds were tentatively identified by mass sceptrometry. ABSTRACT This work evaluated the antiproliferative potential of Eugenia brasiliensis leaf extracts against the HeLa
Giovana G. F. V. de Oliveira   +9 more
wiley   +1 more source

Un periodo crucial en la construcción del medievalismo en Cataluña: de "La Historia de Cataluña y la Corona de Aragón" de Víctor Baklaguer (1863, a "Los orígenes de la revolución catalana" de Jaime Vicens Vives (1957) [PDF]

open access: yes, 2006
Study of the evolution of the Catalan medievalism, from the origin in the Renaisance cultural movement, during the 19th century, to Jaume Vicens Vives in de half 20th century.
Fernández Trabal, Josep
core  

Practical assessment of masonry tunnel joint segmentation using topological machine learning

open access: yesCivil Engineering Design, EarlyView.
Abstract Condition assessment of masonry lined tunnels is time consuming and labor intensive. Recently developed digital workflows enable structural models to be created automatically, reducing analysis time. As part of these procedures, it is important to be able to identify the location of each masonry block.
Jack Smith, Chrysothemis Paraskevopoulou
wiley   +1 more source

Migration and nursing in Ireland: An internationalist history [PDF]

open access: yes, 2009
Recent research and policy interest has focused on the changing composition of the nursing workforce in the Republic of Ireland, which has seen an increase in the number and importance of overseas-trained nurses.
Yeates, Nicola
core  

Alcohol and Carbonyl Redox Reactions in Electrochemical Organic Synthesis

open access: yesChemistryEurope, EarlyView.
This review aims to provide the reader with a useful tool to deal with electrochemical redox reactions involving alcohols and carbonyl compounds. The review is organized in an accessible format and divided into sections that focus on key parameters of wide‐ranging electrosynthetic methods.
Fiammetta Vitulano   +5 more
wiley   +1 more source

Determination of High‐Temperature Float Charge Failure Mechanisms in Lithium‐Ion Batteries by Quantifying Active Lithium Loss

open access: yesCarbon Energy, EarlyView.
This study examined the float charge failure mechanism at high temperatures. Through qualitative analysis, it was proven that active lithium loss in the anode was the main reason for high‐temperature float failure. Quantitative analyses of active lithium showed that the primary cause of float charge failure was the thickening of SEI on the anode, which
Ya‐Lu Han   +8 more
wiley   +1 more source

Towards Systemic Leadership Resilience: Proposing the Hybrid Artificial Intelligent Leader in Response to Economic Crises

open access: yesCanadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l'Administration, EarlyView.
ABSTRACT Researchers now understand that the Great Recession stemmed from a “systemic leadership failure,” involving various entities such as the government, financial institutions, investors, homeowners, and regulators. Consequently, traditional leadership approaches of the time came under intense scrutiny, necessitating a shift in leadership ...
Faidon Theofanidis   +2 more
wiley   +1 more source

A History of Slavery in Central Asia: Shī’ī Muslim Enslavement in 19th Century Bukhara [PDF]

open access: yes, 2018
In lieu of an abstract, below is the essay\u27s first paragraph. Despite more than a century of interest on the part of western scholars and historians in the region of Central Asia, in many respects our knowledge of many topics in Central Asian history ...
Dunbar, Robert
core   +1 more source

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