Results 21 to 30 of about 22,711 (194)

Evolution of multicellularity in Dictyostelia [PDF]

, 2019
The well-orchestrated multicellular life cycle of Dictyostelium discoideum has fascinated biologists for over a century. Self-organisation of its amoebas into aggregates, migrating slugs and fruiting structures by pulsatile cAMP signalling and their ...
Du, Qingyou, Kawabe, Yoshinori, Schaap, Pauline, Schilde, Christina   +3 more
core   +2 more sources

Genetic analysis of acrA and lir mutations of Escherichia coli [PDF]

Journal of Bacteriology, 1982
An analysis of acrA (acriflavine- and methylene blue-sensitive) and lir (lincomycin- and erythromycin-sensitive) mutants of Escherichia coli indicated that these mutations are probably within the same gene.
J M, Henson, J R, Walker
openaire   +2 more sources

Automated injection of slurry samples in flow-injection analysis [PDF]

, 1995
Two types of injectors are described for introducing solid samples as slurries in flow analysis systems. A time-based and a volume-based injector based on multitube solenoid pinch valves were built, both can be characterized as hydrodynamic injectors ...
Bos, M., Hulsman, M., Linden, W.E. van der   +2 more
core   +2 more sources

Learning from community voices about lateral violence and lateral empowerment: a scoping review of grey literature

Australian Journal of Psychology
Background Aboriginal and Torres Strait Islander youth are vulnerable to racism, trauma and Lateral Violence (LV) where negative feelings and behaviours are directed towards members within their own oppressed group.
Yvonne Clark, Anneka Bowman, Rachel Elovaris, Treena Clark, Naomi Thornthwaite, Karen Peterson, Karen Hawke, Feda Ali   +7 more
doaj   +1 more source

Functional relevance of AcrB Trimerization in pump assembly and substrate binding.

PLoS ONE, 2014
AcrB is a multidrug transporter in the inner membrane of Escherichia coli. It is an obligate homotrimer and forms a tripartite efflux complex with AcrA and TolC. AcrB is the engine of the efflux machinery and determines substrate specificity.
Wei Lu, Meng Zhong, Qian Chai, Zhaoshuai Wang, Linliang Yu, Yinan Wei   +5 more
doaj   +1 more source

A Teoria dos Conjuntos de Cantor

Paidéia (Ribeirão Preto), 1992
No final dos anos 50 e começo doe anos 60, houve uma reformulação significativa da Matemática no Brasil. Sob a bandeira do modernismo, seus defensores buscaram inovações no ensino da Matemática.
Antônio Acra Freiria
doaj   +1 more source

Non-Uniform Concentric Rings Design for Ultra-Wideband Arrays

Sensors, 2019
This paper presents the design of aperiodic concentric ring arrays for ultra-wide bandwidths (UW-ACRA). This design of ultra-wideband arrays considers the synthesis of concentric rings in two cases: 1) non-uniform spacing between rings with non-uniform ...
Marco A. Panduro, Alberto Reyna, David H. Covarrubias   +2 more
doaj   +1 more source

The City of David and Acra [PDF]

Palestine Exploration Quarterly, 1888
(1888). The City of David and Acra. Palestine Exploration Quarterly: Vol. 20, No. 2, pp. 108-108.
openaire   +1 more source

Lateral violence and lateral empowerment in relation to young Indigenous populations across the CANZUS nations: a scoping review

Australian Journal of Psychology
Objective Young Indigenous people are vulnerable to lateral violence, where negative feelings and behaviours are directed towards members within their own oppressed group. Lateral empowerment, in contrast, is where young people can promote resilience and
Yvonne Clark, Feda Ali, Anneka Bowman, Rachel Elovaris, Sarah Clark, Treena Clark, Karen L. Peterson, Naomi Thornthwaite, Imani Austin, Karen Hawke   +9 more
doaj   +1 more source

‘It gives me purpose’: stories shared by Aboriginal mothers and their perspectives on nurturing resilience

Australian Journal of Psychology
Objective Aboriginal and Torres Strait Islander women have unique experiences of motherhood, underpinned by intergenerational cultural knowledge and holistic practices.
Charlotte Sapio, Natasha J. Howard, Tina Brodie, Karen Glover, Renae Holmberg, Yvonne Clark   +5 more
doaj   +1 more source