Results 101 to 110 of about 1,660,917 (306)

Increased positive tree species mixture effects on the abundance and richness of Collembola with stand development in Canadian boreal forests

open access: yesForest Ecosystems
It is well established that species mixtures could enhance ecosystem functioning in diverse ecosystem types, with these benefits increasing over time. However, the impact of tree mixtures on Collembola communities following stand development in natural ...
Yakun Zhang   +6 more
doaj   +1 more source

Composition of psocid taxocenoses (Insecta: Psocoptera) in dependence on the level of naturalness of forest ecosystems in the Žďárské vrchy hills

open access: yesJournal of Forest Science, 2003
In 1999-2000 in the Protected Landscape Area (PLA) Žďárské vrchy hills the occurrence of psocids (Psocoptera) was studied in different types of biotopes: natural forest ecosystems (stands of Fagus sylvatica with individual admixture of Abies alba, Acer ...
P. Mückstein, O. Holuša
doaj   +1 more source

Evolutionary dynamics of the chloroplast genome in Daphne (Thymelaeaceae): comparative analysis with related genera and insights into phylogenetics

open access: yesFEBS Open Bio, EarlyView.
Comparative analysis of chloroplast genomes from 14 genera of Thymelaeaceae revealed variation in gene content, ranging from 128 to 142 genes, primarily influenced by IR expansion/contraction events and pseudogenization of ndhF, ndhI, and ndhG. Two large inversions were detected within the large single‐copy region, including a synapomorphic inversion ...
Abdullah   +8 more
wiley   +1 more source

Provision of forest stands with undergrowith in region of oil-gas production [PDF]

open access: yes, 2019
На основании анализа данных 103 864 лесотаксационных выделов предпринята попытка установления обеспеченности подростом насаждений лесного фонда, произрастающих на территории лицензионных участков ПАО «НК “Роснефть”».
Залесова, Е. С.   +1 more
core  

Impact of a senior research thesis on students' perceptions of scientific inquiry in distinct student populations

open access: yesFEBS Open Bio, EarlyView.
This study addressed how a senior research thesis is perceived by undergraduate students. It assessed students' perception of research skills, epistemological beliefs, and career goals in Biochemistry (science) and BDC (science‐business) students. Completing a thesis improved confidence in research skills, resilience, scientific identity, closed gender‐
Celeste Suart   +4 more
wiley   +1 more source

The outcomes of Quercus robur natural regeneration after clear-cutting in the north-eastern part of Ukraine

open access: yesFolia Oecologica
Enabling natural seed regeneration is important because natural stands grown from seeds are more productive compared to vegetative and artificial ones; they are also more resistant to adverse environmental factors and climate change. The aim of the study
Tkach Viktor   +3 more
doaj   +1 more source

Solution model of natural growth forest stands

open access: yesИзвестия СПбЛТА, 2018
Проблема устойчивого управления лесами должна основываться на знании законов динамического состояния леса как проявление общей закономерности фазового развития природных пространственно-временных структур (начало, структуризация, асимптотическое состояние, деструктуризация). Линейные и нелинейные уравнения колебаний (волн), описывающие фазовую динамику
openaire   +1 more source

The photoswitchable cannabinoid azo‐HU308 enables optical control of Ca2+ dynamics in INS‐1 β‐cells via off‐target effects on TRPC channels

open access: yesFEBS Open Bio, EarlyView.
Light activation of the photoswitchable cannabinoid ligand azo‐HU308 triggers Ca2+ influx in pancreatic β‐cells through TRPC channels, independent of CB2 cannabinoid receptors. This reveals a non‐GPCR pathway for cannabinoid modulation of β‐cell Ca2+ dynamics and establishes azo‐HU308 as an optical tool to study cannabinoid signaling through TRP ...
Alexander E. G. Viray, James A. Frank
wiley   +1 more source

Biotic productivity of forests of the National Natural Park «Holosiivskyi»

open access: yesНаукові праці Лісівничої академії наук України, 2018
According to the research results, the structure and total volumes of phytomass and sequestered carbon of the National natural park «Holosiivskyi» forest stands are presented. The calculation of the biotic productivity of park forest stands was conducted
Petro Lakyda , Bohdana Dubrovets
doaj   +1 more source

Will the Real "Natural Trading Partner" Please Stand Up? [PDF]

open access: yesJournal of Economic Integration, 2001
Adherents to the “natural trading partner” hypothesis argue that forming a PTA is more likely to raise welfare if member countries already trade disproportionately with each other. Opponents of the hypothesis claim that the opposite is true: welfare is likely to be higher if member countries trade less with each other.
openaire   +2 more sources

Home - About - Disclaimer - Privacy