Results 91 to 100 of about 41,718 (241)

Effect of crop management practices on the sustainability and environmental impact of organic and low input food production systems [PDF]

, 2007
While organic farming can reduce many of the environmental problems caused by agriculture, organic farming also includes some practices which are questionable in terms of environmental effects. Organic farming practices (rotations, fertilisation regimes,
Thorup-Kristensen, K.
core  

From Molecule to Material: How Support Changes Heterobimetallic Catalysts in Lactide Polymerization

Macromolecular Rapid Communications, EarlyView.
Silica‐supported heterobimetallic alkoxide complexes were developed as catalysts for lactide ring‐opening polymerization. Grafting iron‐based ate complexes onto SiO2‐700 produced well‐defined active sites, enabling controlled polymerization with predictable molar masses, narrow dispersities, and recyclability.
Fan Yang, Yahaya Nasiru, Abdulrahman Adamu Isah, Aimery de Mallmann, Mostafa Taoufik, Régis M. Gauvin, Christophe M. Thomas   +6 more
wiley   +1 more source

THE FINANCING OF THE ADMINISTRATIVE - TERRITORIAL UNITS IN THE WEST DEVELOPMENT REGION THROUGH THE REGIONAL OPERATIONAL PROGRAMME 2007 - 2013 [PDF]

It is very important to be found methods to increase the competitiveness between the Romanian administrative-territorial units, under the current conditions of the economic crisis, by means of the existing economic levers successfully used within the ...
Munteanu Nicolae-Eugen
core  

Research on the Prediction of Drilling Rate in Geological Core Drilling Based on the BP Neural Network

Applied Sciences
The development of automation and intelligence in geological core drilling is not yet mature. The selection and improvement of drilling parameters rely mainly on experience, and adjustments are often made after drilling by evaluating the core, which ...
Da Gong, Yutong Zu, Zheng Zhou, Mingrang Jia, Jiachen Liu, Yuanbiao Hu   +5 more
doaj   +1 more source

Macular edema in Asian Indian premature infants with retinopathy of prematurity: Impact on visual acuity and refractive status after 1-year

Indian Journal of Ophthalmology, 2015
Purpose: To report the impact of transient, self-resolving, untreated "macular edema" detected on spectral domain optical coherence tomography in Asian Indian premature infants with retinopathy of prematurity (ROP) on visual acuity (VA) and refraction at
Anand Vinekar, Shwetha Mangalesh, Chaitra Jayadev, Noel Bauer, Sivakumar Munusamy, Vasudha Kemmanu, Mathew Kurian, Padmamalini Mahendradas, Kavitha Avadhani, Bhujang Shetty   +9 more
doaj   +1 more source

Disulfide‐Induced Inhibition of Epoxy Cationic Photopolymerization: A Route to Maskless Patterning

Macromolecular Rapid Communications, EarlyView.
This study investigates the role of disulfide‐containing molecules on the photopolymerization of epoxy monomers through cationic ring‐opening reaction, with the demonstration of the selective inhibition of the polymerization when disulfides are added to the photocurable formulation. This quenching is then exploited as a novel maskless photolithographic
Alberto Spessa, Roberta Bongiovanni, Alessandra Vitale   +2 more
wiley   +1 more source

Preliminary experimental validation of the improved ROP using hammer and High Pressure Water Jet

, 2023
Increasing drilling speeds to reduce drastically the costs is the main challenge to promote deep geothermal systems. Traditional rotary techniques show limitations in drilling speed on very hard deep crystalline rocks with low ROP and/or high wear level. This is the challenge pursued by ORCHYD, using the combination of high-pressure water jetting (HPWJ)
Gerbaud, Laurent, Cazenave, Florian, Velmurugan, Naveen, Sellami, Hedi, Jahangir, Emad   +4 more
openaire   +1 more source

Poly(L‐Lactide‐Co‐ε‐Caprolactone)/glass Fiber Composites: Toward Improved Mechanical Properties of Polylactide‐Based Composites

Polymer Composites, EarlyView.
Enhanced impact strength in PLLA‐based composites via ε‐caprolactone incorporation in the matrix. ABSTRACT Inherent brittleness and limited toughness of polylactide (PLA) restrict its use in high‐performance applications. To overcome these limitations, poly(L‐lactide) (PLLA) is often blended with more ductile thermoplastics or chemically modified ...
Bernard Miranda Campos, Gaëlle Fontaine, Serge Bourbigot, Grégory Stoclet, Fanny Bonnet   +4 more
wiley   +1 more source

Evaluating the potential of RNA interference for control of striped cucumber beetle, Acalymma vittatum (Fabricius) (Coleoptera: Chrysomelidae)

Pest Management Science, EarlyView.
SCB has a robust RNAi response to injected dsRNA, but oral RNAi is less efficient. Nucleases do not appear to be responsible for the discrepancy, suggesting other factors are involved. Abstract BACKGROUND The striped cucumber beetle (SCB) is a serious pest of cucurbit crops, causing damage both by feeding on plants and by vectoring plant diseases ...
Emine Kaplanoglu, Félix Longpré, Cam Donly   +2 more
wiley   +1 more source

Optimization of an E. coli L-rhamnose-inducible expression vector: test of various genetic module combinations

BMC Biotechnology, 2008
Background A capable expression vector is mainly characterized by its production efficiency, stability and induction response. These features can be influenced by a variation of modifications and versatile genetic modules.
Altenbuchner Josef, Sun Tianqi, Wegerer Angelika   +2 more
doaj   +1 more source