Results 81 to 90 of about 6,830 (217)

The Black Sea economic cooperation zone: Outline of a new community of states [PDF]

open access: yes, 2008
The political changes in eastern Europe have opened up new opportunities for trade among the countries surrounding the Black Sea, and especially between the former socialist countries and Turkey, the country with the longest Black Sea coastline.
Gumpel, Werner
core   +1 more source

Lability in Hittite and Indo‐European: A Diachronic Perspective

open access: yesStudia Linguistica, Volume 80, Issue 1, April 2026.
ABSTRACT Lability is defined as the possibility of a verb to enter a valency alternation without undergoing any change in its form. Labile verbs were common in ancient Indo‐European languages, including Hittite, which mostly features anticausative lability, with reflexive and reciprocal lability being less prominent.
Guglielmo Inglese
wiley   +1 more source

FOLLICLE STIMULATING HORMONE RECEPTOR Ser680Asn POLYMORPHISM IN WOMEN WITH POLYCYSTIC OVARY [PDF]

open access: yes, 2014
Polymorphisms at codon 680 (Ser680Asn) of FSH receptor gene affected the basal FSH levels and sensitivity of FSH receptor to FSH exogenous in women undergoing assisted reproduction program in some ethnics in the world, while it could not proved in others.
Yuni, Ahda
core  

Biogeography and host associations of Russula subsection Xerampelinae based on large‐scale analysis of UNITE sequence data

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2547-2558, March 2026.
Summary Estimating fungal geographic ranges and niche potential is limited by the ephemeral nature of fruiting bodies. While environmental DNA offers broader insights, species‐level identification remains difficult due to uncertain sequence clustering thresholds, low interspecific variation in barcoding regions, and limited taxonomic resolution.
Chance R. Noffsinger   +7 more
wiley   +1 more source

El concepto de número racional: un estudio de su proceso de aprendizaje desde un abordaje sociocultural [PDF]

open access: yes, 2012
En este trabajo estudiaremos el proceso de aprendizaje del concepto de número racional, en un grado 4 de la Básica Primaria de una institución ubicada en el municipio de Caucasia,mediante el uso de actividades orientadoras de enseñanza, elaboradas desde ...
López, Juan Antonio
core  

Oaks and Climate Change: Contrasting Range Responses of Mediterranean and Temperate Quercus Species in the Western Palearctic

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
We analyzed past and future range dynamics of six oak (Quercus) species across the western Palearctic using ecological niche models, reconstructing distributions for the Last Glacial Maximum, the present, and two future scenarios. Quantitative metrics of centroid shifts, range limits, and area change revealed that temperate and transition‐zone species ...
Elif Deniz Ülker   +1 more
wiley   +1 more source

Pressure of Invasive Alien Species Trachemys scripta on Native Species Under Future Climate Change Scenarios

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
In this study, ecological niche models are provided for Trachemys scripta and its competing species in Turkey. In 20‐year intervals, the map indicates the future habitat areas suitable for the invasive species as well as its competitors. The results of this study have led to a determination of the regions where invasive species are likely to be ...
Nilgün Kaya   +6 more
wiley   +1 more source

Dendrochronological Assessment of Forest Productivity Dynamics in Northwest Caucasia [PDF]

open access: yesЖурнал Сибирского федерального университета: Серия Биология, 2012
Timber stock dynamics during last 300 years have been assessed using ring-width chronologies for sessile oak (Quercus petraea Liebl), Oriental beech (Fagus orientalis Lipsky) and Nordmann fir (Abies nordmanniana (Stev.) Spach.) processed by novel method.
Gawriil E. Komin
doaj  

Saving the remnant or building socialism? Transnational humanitarian relief in early Soviet Armenia [PDF]

open access: yes, 2017
Drawing on research in the National Archive of Armenia, the League of Nations Archive and the Archives of the Save the Children Fund, this article examines the work of international relief organisations in Soviet Armenia during the 1920s, focusing on the
Laycock, Joanne
core   +1 more source

Seed fossil record of Solanaceae revisited

open access: yesTAXON, Volume 75, Issue 1, Febuary 2026.
Abstract The fossil record for Solanaceae has a complex taxonomic history, with many species originally described in the family being subsequently shown to belong in other plant families. In this work, we present an in‐depth analysis of the nightshade seed fossil record, which corresponds to the largest amount of fossil material for the family.
Rocío Deanna   +14 more
wiley   +1 more source

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