Results 31 to 40 of about 870,348 (287)

Record of population of Callophrys chalybeitincta Sovynski, 1905 (Lepidoptera: Lycaenidae) in Volgograd Region (Russia) [PDF]

open access: yesКавказский энтомологический бюллетень, 2013
Studies of genetic markers (COI and ITS2) and genitalia of specimens from isolated population of butterflies of the genus Callophrys from Volgograd Region (Russia) indicate that it belongs to the species C. chalybeitincta Sovynski, 1905.
G.V. Kuznetsov   +2 more
doaj   +1 more source

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri   +12 more
wiley   +1 more source

Nanostructured Magnetite Coated with BiOI Semiconductor: Readiness Level in Advanced Solar Photocatalytic Applications for the Remediation of Phenolic Compounds in Wastewater from the Wine and Pisco Industry

open access: yesApplied Sciences
Heterogeneous photocatalysis is an advanced, efficient oxidation process that uses solar energy to be sustainable and low-cost compared to conventional wastewater treatments.
Alejandra Gallegos-Alcaíno   +8 more
doaj   +1 more source

REVIEW ON THERMAL INSULATION OF BUILDINGS WITH PHASE CHANGE MATERIALS: INCORPORATION METHODS AND APPLICATIONS

open access: yesJournal of Fundamental and Applied Sciences, 2018
Reducing energy consumption is an increasingly important issue for the residential sector. As a result, attention to thermal insulation systems for buildings has increased in recent years. The use of phase change materials (PCMs) is an attractive way for
A. Sarri   +3 more
doaj   +1 more source

Review of Palaearctic species of the genus Ammocleonus Bedel, 1907 (Coleoptera: Curculionidae: Lixinae) and place of the genus in the system of weevils of the tribe Cleonini [PDF]

open access: yesКавказский энтомологический бюллетень, 2014
In the paper morphological description of the genus Ammocleonus Bedel, 1907 is given, its position among representatives of psammophilous complex of Cleonini of Palaearctic is discussed, and a possible scenario of the early phylogeny of the tribe ...
Yu.G. Arzanov
doaj   +1 more source

3D‐Printed Gradient Shape‐Memory Strain Sensors With Rewritable Gauge Factors

open access: yesAdvanced Functional Materials, EarlyView.
A 3D‐printed shape‐memory strain sensor combines thermomechanical programming with gradient architectural design. Preset strain rewrites the gauge factor (GF), while the gradient geometry amplifies the response through strain redistribution. Reprogrammable sensitivity enables the same sensor to detect weak pulse signals and monitor large‐amplitude ...
Xuan Zhang   +10 more
wiley   +1 more source

Analysis of mitochondrial and nuclear DNA sequences in some butterflies of subgenus Polyommatus (s. str) Latreille, 1804 (Lepidoptera: Lycaenidae) of Afghanistan [PDF]

open access: yesКавказский энтомологический бюллетень, 2011
Using the study of nuclear (ITS2) and mitochondrial DNA primary nucleotide sequences, authors demonstrated that species of Polyommatus icadius (Grum-Grshimailo, 1890) are presented in the entomofauna of Afghanistan.
D.I. Vodolazhsky   +2 more
doaj   +1 more source

Physiological and biochemical responses at leaf and root levels in two Acacia species (A. cyclops and A. salicina) subjected to dehydration

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2021
To set-up afforestation and reforestation projects in arid regions southern Tunisia, several indigenous and exotic forest species were used among them are Acacia spp.
Samira SOUDEN   +2 more
doaj   +1 more source

Chitin‐Chitosan Cryogels for the Reversible Sequestration and Recovery of Heavy Metals From Wastewater

open access: yesAdvanced Materials Technologies, EarlyView.
Chitin‐chitosan cryogels with degrees of N‐acetylation from 12.2% to 71.4% are fabricated by dissolution, coagulation and lyophilization for the sequestration of heavy metals from water. Colorimetry and differential pulse voltammetry showed controlled adsorption and desorption capacities for As5+, Co2+ and Cu2+, making this material attractive for ...
Marta García‐Castrillo   +4 more
wiley   +1 more source

Analysis of benthic macroinvertebrates and biotic indices to evaluate water quality in rivers impacted by mining activities in northern Chile

open access: yesKnowledge and Management of Aquatic Ecosystems, 2013
Catchments in the semiarid regions are especially susceptible to environmental perturbation associated with water scarcity, hydrological variations and overuse by anthropogenic activities.
Alvial I.E.   +4 more
doaj   +1 more source

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