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1999

Owttrim, George W., Magee, Wendy C., Yu, Esther, Chamot, Danuta

The ability to modify RNA secondary structure is crucial for numerous cellular processes. We have characterized two RNA helicase genes, crhB and crhC, which are differentially expressed in the cyanobacterium Anabaena sp. strain PCC 7120. crhC transcription is limited specifically to cold shock...

2013-01-01

Paetz, Christian, Wadke, Namita, Brand, Willi A., Wright, Louwrance P., Gershenzon, Jonathan, Schmidt, Axel, Fenning, Trevor M., Schneider, BerndBohlmann, Joerg, Hammerbacher, Almuth

Norway spruce (Picea abies) forests suffer periodic fatal attacks by the bark beetle Ips typographus and its fungal associate, Ceratocystis polonica. Norway spruce protects itself against fungal and bark beetle invasion by the production of terpenoid resins, but it is unclear whether resins or...

2013

Scott, Nichollas E., Schild, Stefan, Lees-Miller, Robert G., Seper, Andrea, Vinogradov, Evgeny, Feldman, Mario F., Iwashkiw, Jeremy A.

2003-05-01

genome, coronavirus, Severe Acute Respiratory (SARS), phylogeny

2007

Guan, L., Guo, Y., Liu, T., Li, H., Wang, J., Zheng, W.M., Wong, G.K.

Background The main two sorts of automatic gene annotation frameworks are ab initio and alignment-based, the latter splitting into two sub-groups. The first group is used for intra-species alignments, among which are successful ones with high specificity and speed. The other group contains more...

2009-12-22

Frédéric M. Hamelin, Mark A. Lewis

In this paper, elements of differential game theory are used to analyze a spatially explicit home range model for interactingwolf packs when movement behavior is uncertain. The model consists of a system of partial differential equations whose parameters reflect the movement behavior of...

2016-06-13

Vlastimil Kˇrivan, Mark Lewis, Barbara J. Bentz, Sharon Bewick, Suzanne M. Lenhart, Andrew Liebhold

Tree-killing bark beetles are major disturbance agents affecting coniferous forest ecosystems. The role of environmental conditions on driving beetle outbreaks is becoming increasingly important as global climatic change alters environmental factors, such as drought stress, that, in turn, govern...

2020-11-05

Chunxi Feng, Mark A. Lewis, Chuncheng Wang, Hao Wang

In this paper, we propose a novel free boundary problem to model the movement of single species with a range boundary. The spatial movement and birth/death processes of the species found within the range boundary are assumed to be governed by the classic Fisher–KPP reaction–diffusion equation,...

2008

Deyholos, M.K., Hotte, N.S.

Background: Bast fibres from the phloem tissues of flax are scientifically interesting and economically useful due in part to a dynamic system of secondary cell wall deposition. To better understand the molecular mechanisms underlying the process of cell wall development in flax, we extracted...

2016-01-01

Schlägel, Ulrike E, Lewis, Mark A.

When sampling animal movement paths, the frequency at which location measurements are attempted is a critical feature for data analysis. Important quantities derived from raw data, e.g. travel distance or sinuosity, can differ largely based on the temporal resolution of the data. Likewise, when...