Results 31 to 40 of about 9,290,066 (340)

Performance of introducing outdoor cold air for cooling a plant production system with artificial light

open access: yesFrontiers in Plant Science, 2016
The commercial use of a plant production system with artificial light (PPAL) is limited by its high initial construction and operation costs. The electric-energy consumed by heat pumps, applied mainly for cooling, accounts for 15-35% of the total ...
Jun eWang   +7 more
doaj   +1 more source

Suaeda foliosa Moq. (Caryophyllales: Amaranthaceae) first record of the genus and species for Valparaíso Region, Chile [PDF]

open access: yes, 2015
Indexación: Web of Science; Scielo.BACKGROUND: The purpose of this paper is to present the finding of Suaeda foliosa in El Yali National Reserve, Chile.
Contreras-López, Manuel   +1 more
core   +2 more sources

Essential planetary health workers: Positioning rangers within global policy

open access: yesConservation Letters, 2023
Our planet is facing increasing challenges: climate change, biodiversity loss, pandemics, poverty, and many other problems closely linked to a deteriorating environment.
Sue Stolton   +14 more
doaj   +1 more source

The Extent of Anthropogenic Disturbance on Wetland Area in the Oil Sands Region of Alberta, Canada Between 2000 and 2018

open access: yesLand
Wetlands globally have and continue to undergo modification from anthropogenic and natural environmental factors. To bridge this gap, this study utilised a GIS-based approach to quantify the areal extent of human footprint disturbances to wetlands over ...
Joshua Montgomery   +3 more
doaj   +1 more source

Voltage-Current curves for small Josephson junction arrays [PDF]

open access: yes, 2007
We compute the current voltage characteristic of a chain of identical Josephson circuits characterized by a large ratio of Josephson to charging energy that are envisioned as the implementation of topologically protected qubits. We show that in the limit
Doucot, Benoit, Ioffe, Lev B.
core   +2 more sources

Costs, viability and risks of organic tomato production in a protected environment

open access: yes, 2018
The aim of this research was to evaluate the agro-economic performance of two table-tomato cultivars (Santa Clara and Siluet), under organic cultivation and in a protected environment.
A. D. S. M. Neto   +4 more
semanticscholar   +1 more source

Emergence and Structural Characteristic of the Solanum pimpinellifolium in Trays under Different Levels and Types of Substrates

open access: yesHorticulturae, 2023
The cultivated tomato is one of the most consumed vegetables in the world, and the preparation of seedlings plays a fundamental role in the success of the crop, which is often plagued by fungi and bacteria from its earliest stages.
Erivaldo Erbo Alves dos Santos   +6 more
doaj   +1 more source

Quiescence: a mechanism for escaping the effects of drug on cell populations [PDF]

open access: yes, 2010
We point out that a simple and generic strategy to lower the risk for extinction consists in the developing a dormant stage in which the organism is unable to multiply but may die. The dormant organism is protected against the poisonous environment.
Alberts B.   +4 more
core   +4 more sources

GÁLIA MELONS PRODUCTION IN PROTECTED ENVIRONMENT UNDER DIFFERENT IRRIGATION DEPTHS

open access: yes, 2017
The study aimed to evaluate the “Galia” melons productive characteristics grown in greenhouse under different irrigation levels, and conducted with and without soil cover by plastic mulching.
E. M. D. C. Lima   +4 more
semanticscholar   +1 more source

Carbon–Phosphorus Coupling Governs Microbial Effects on Nutrient Acquisition Strategies by Four Crops

open access: yesFrontiers in Plant Science, 2022
Plants adjust root morphological and/or exudation traits in response to phosphorus (P) mobilization mediated by microorganisms. We hypothesized that straw application coupled with P fertilization would influence microbial P and then root nutrient ...
Deshan Zhang   +16 more
doaj   +1 more source

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