Results 91 to 100 of about 507,167 (231)

Revision of Manettia (Rubiaceae) in Paraguay

open access: yesNordic Journal of Botany, Volume 2026, Issue 2, February 2026.
Manettia Mutis is a Neotropical genus comprising over 100 species, many of which are only known from their original descriptions or, at most, from revisions dating back over 100 years. Recent review studies have remained unpublished for several years. Conventional taxonomic methods are followed.
Silvana Yasmin Gauto   +2 more
wiley   +1 more source

Czasopisma żeglarskie w Drugiej Rzeczypospolitej [PDF]

open access: yes, 2006
The article discuses maritime periodicals and one-off publications published in Poland in the period between the two world wars by sports organisations, the Maritime and Colonial League, the Polish Scouting Association and the Academic Marine ...
Ruta, Adam
core  

Taxonomic investigation of Abrothallus (Abrothallales, Ascomycota) species associated with lichen genera Ramalina and Bryoria, including the description of a new species

open access: yesNordic Journal of Botany, Volume 2026, Issue 2, February 2026.
The obligately lichenicolous genus Abrothallus consists of approximately 50 species, almost all of which are associated with lichens having foliose, fruticose, or pendulous thalli. This paper focuses on species that grow on strap lichens (Ramalina) providing new insights into their phylogenetic relationships and distribution.
Ave Suija   +5 more
wiley   +1 more source

Advancing Water Security in the Tropical and Subtropical Regions: An Integrative Topic Modeling Approach

open access: yesWorld Water Policy, Volume 12, Issue 1, February 2026.
ABSTRACT Water security in tropical regions faces escalating pressures from climate change, land‐use shifts, and population growth. We conducted a bibliometric review of 1146 peer‐reviewed articles (1964–2023) on tropical water security. Latent Dirichlet Allocation identified 13 thematic topics and their evolution. Publications rose sharply after 2012,
Karling Fernanda Schuster   +3 more
wiley   +1 more source

Equilibrium Corporate Finance [PDF]

open access: yes
We study a general equilibrium model with production where financial markets are incomplete. At a competitive equilibrium firms take their production and financial decisions so as to maximize their value.
Alberto Bisin   +2 more
core  

First record of a Paranacystid mitrate from the Bokkeveld Group of South Africa [PDF]

open access: yes, 1997
Main articleThe Upper Eifelian paranacystid mitrate Paranacystis simoneae sp. nov. from the Waboomberg Formation (Bokkeveld Group, We stern Cape Province, South Africa) is described and a revised diagnosis of the Family Paranacystidae is presented ...
Ruta, Marcello
core  

Do institutions matter for entrepreneurial development?

open access: yes, 2017
Supportive institutional environments help build the foundations for innovative and productive entrepreneurship. A few post-Soviet countries have benefitted from international integration through EU membership, which enabled the development of democracy ...
Aidis, Ruta
core   +1 more source

Gravity With Lasso: Global Cereal Trade With Factors of Conflicts, COVID‐19, Currency, China, Climate Change and Income (‘6C’)

open access: yesThe World Economy, Volume 49, Issue 2, Page 346-372, February 2026.
ABSTRACT Global and open trade fosters peace, economic prosperity and food security worldwide, but it faces growing instability due to multidimensional factors. A range of new developments threaten the resilience of trade networks, with direct implications for food security.
Lucie Maruejols   +3 more
wiley   +1 more source

Unified model of hyperthermia via hysteresis heating in systems of interacting magnetic nanoparticles

open access: yes, 2014
We present a general study of frequency and magnetic field dependence of the specific heat power produced during field-driven hysteresis cycles in magnetic nanoparticles with relevance to hyperthermia applications in biomedicine.
Chantrell, R., Hovorka, O., Ruta, S.
core   +1 more source

Europska ruta industrijske baštine - regionalna ruta Hrvatske [PDF]

open access: yes, 2019
Looking at the development of the industry and the basic concepts related to industrial heritage, this thesis is about the European Route of Industrial Heritage with the emphasis on the possibility of creating a regional route in Croatia. The European Route of Industrial Heritage is a certified cultural route of the Council of Europe and it is an ...
openaire   +1 more source

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