Results 81 to 90 of about 1,018,273 (298)

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

Spectral Identification of Stress Types for Maize Seedlings Under Single and Combined Stresses

IEEE Access, 2018
Plants frequently suffer from different types of stress and their combination. Timely and effective monitoring of plant stresses is necessary for the precision management of crops and environmental protection.
Baodong Ma, Ruiliang Pu, Song Zhang, Lixin Wu   +3 more
doaj   +1 more source

Relationship between Hubble type and spectroscopic class in local galaxies

, 2011
We compare the Hubble type and the spectroscopic class of the galaxies with spectra in SDSS/DR7. As it is long known, elliptical galaxies tend to be red whereas spiral galaxies tend to be blue, however, this relationship presents a large scatter, which ...
Abazajian, Aguerri, Ascasibar, Baldry, Balogh, Barazza, Bekki, Bishop, Blanton, Blanton, Buta, C. Muñoz-Tuñón, de Vaucouleurs, de Vaucouleurs, Deng, Doi, Dressler, Elmegreen, Everitt, Fukugita, Gabor, Griffith, Hubble, J. A. L. Aguerri, J. Sánchez Almeida, Kannappan, M. Huertas-Company, Madau, Maraston, Martin, Martin, Méndez-Abreu, Nair, Odewahn, Salim, Sodre, Stoughton, Strateva, Sánchez Almeida, Sánchez Almeida, Yip, Zhang   +41 more
core   +3 more sources

Numerical analysis of the frequency chirp in quantum dot semiconductor lasers [PDF]

, 2007
We present a numerical model for the analysis of the chirp dynamics of quantum-dot (QD) semiconductor laser under large signal current modulation. The model is based on the multi-population rate equation formalism, and it includes all the peculiar ...
Gioannini, Mariangela, Montrosset, Ivo
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Photooxidation and photoaquation of iron hexacyanide in aqueous solution: A picosecond X-ray absorption study

Structural Dynamics, 2014
We present a picosecond Fe K-edge absorption study of photoexcited ferrous and ferric hexacyanide in water under 355 and 266 nm excitation.
M. Reinhard, T. J. Penfold, F. A. Lima, J. Rittmann, M. H. Rittmann-Frank, R. Abela, I. Tavernelli, U. Rothlisberger, C. J. Milne, M. Chergui   +9 more
doaj   +1 more source

Determination of structure tilting in magnetized plasmas - Time delay estimation in two dimensions [PDF]

, 2013
Time delay estimation (TDE) is a well-known technique to investigate poloidal flows in fusion plasmas. The present work is an extension of the earlier works of A. Bencze and S. Zoletnik 2005 and B. T\'al et al. 2011.
Andreas-Krämer-Flecken, Bencze, Attila, Guszejnov, Dávid, Zoletnik, Sándor   +3 more
core   +2 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Assessment of Peacock Spot Disease (Fusicladium oleagineum) in Olive Orchards Through Agronomic Approaches and UAV-Based Multispectral Imaging

Horticulturae
Olive leaf spot (OLS), caused by Fusicladium oleagineum, is a significant disease affecting olive orchards, leading to reduced yields and compromising olive tree health.
Hajar Hamzaoui, Ilyass Maafa, Hasnae Choukri, Ahmed El Bakkali, Salma El Iraqui El Houssaini, Rachid Razouk, Aziz Aziz, Said Louahlia, Khaoula Habbadi   +8 more
doaj   +1 more source

On Characterizing the Data Access Complexity of Programs [PDF]

, 2014
Technology trends will cause data movement to account for the majority of energy expenditure and execution time on emerging computers. Therefore, computational complexity will no longer be a sufficient metric for comparing algorithms, and a fundamental ...
Bilardi G., Bilardi G., Elango V., Fuller S. H., Savage J. E., Scquizzato M.   +5 more
core   +5 more sources