Search
Now showing items 7061-7070 of 7136
Citizens’ attitudes towards migrant workers in Qatar
(
Taylor & Francis (Routledge)
, 2015 , Article)
Public attitudes play a critical role in shaping policies towards immigration and the
status of migrant workers. Facing growing pressure from international human rights
organizations, media and other groups, the Gulf ...
Reform of the Kafāla System: A Survey Experiment from Qatar
(
Taylor & Francis (Routledge)
, 2016 , Article)
Immigration in the Arabian Gulf is governed by the kafāla (sponsorship) system,
which provides the legal basis for the residency and employment of foreign workers across
the region. Despite mounting economic, political ...
Evidence of two mechanisms involved in Bacillus thuringiensis israelensis decreased toxicity against mosquito larvae: Genome dynamic and toxins stability
(
Elsevier GmbH
, 2015 , Article)
Biopesticides based on Bacillus thuringiensis israelensis are the most used and most successful around the world. This bacterium is characterized by a dynamic genome able to win or lose genetic materials which leads to a ...
Cry4Ba and Cyt1Aa proteins from Bacillus thuringiensis israelensis: Interactions and Toxicity mechanism against Aedes aegypti
(
Elsevier Ltd
, 2015 , Article)
Individual crystal proteins from Bacillus thuringiensis israelensis exhibit variable levels of insecticidal activities against mosquito larvae. In all cases, they are much less active compared to the whole crystal proteins ...
Evidence of the Involvement of E358, A498 and C571 of a New Cry1Ac δ-endotoxin of Bacillus thuringiensis in its High Insecticidal Activity Against Ephestia kuehniella
(
Humana Press Inc
, 2010 , Article)
A new cry1Ac-type gene was cloned from Bacillus thuringiensis strain BLB1, sequenced and expressed. The deduced amino acid sequence of the polypeptide has a predicted molecular mass of 132.186 kDa. The amino acid sequence ...
Agrotis segetum midgut putative receptor of Bacillus thuringiensis vegetative insecticidal protein Vip3Aa16 differs from that of Cry1Ac toxin
(
Elsevier Inc.
, 2013 , Article)
Considering the fact that Agrotis segetum is one of the most pathogenic insects to vegetables and cereals in the world, particularly in Africa, the mode of action of Vip3Aa16 of Bacillus thuringiensis BUPM95 and Cry1Ac of ...
Sustainable production of toxin free marine microalgae biomass as fish feed in large scale open system in the Qatari desert
(
Elsevier Ltd
, 2015 , Article)
Mass cultivation of microalgae biomass for feed should be cost effective and toxin free. Evaporation loss in Qatar can be as high as 2 cm/d. Hence, production of marine microalgae biomass in Qatar would also require ...
USE OF EPORTFOLIOS IN K-12 TEACHER HIRING IN NORTH CAROLINA: PERSPECTIVES OF SCHOOL PRINCIPALS
(
Association for Supervision and Curriculum Development
, 2012 , Article)
This study explored the perceptions of principals involved in the hiring process of K–12 teachers in 11 counties in southeastern North Carolina. Forty-nine principals responded to a survey on ePortfolio use in the hiring ...
TiO2 nanotubes with ultrathin walls for enhanced water splitting
(
Royal Society of Chemistry
, 2015 , Article)
We demonstrate, for the first time, the synthesis of titania nanotubes
with ultrathin (3–5 nm) wall thickness. As revealed by the incident
photon-to-current collection efficiency (IPCE) and electrochemical
impedance ...
Evaluation of the Mechanical Properties of AA 6063 Processed by Severe Plastic Deformation
(
Springer US
, 2015 , Article)
In this study, the mechanical properties, including surface hardness, tensile strength, fatigue, and fretting fatigue behavior of AA 6063 processed by equal channel angular pressing as the most efficient severe shear plastic ...