Results 31 to 40 of about 4,669,485 (292)

Quantitative proteomics reveals that dormancy-related proteins mediate the attenuation in mycobacterium strains

open access: yesVirulence, 2021
Although members of the Mycobacterium tuberculosis complex (MTBC) exhibit high similarity, they are characterized by differences with respect to virulence, immune response, and transmissibility.
Hong Wang   +17 more
doaj   +1 more source

Dendrimer Anion-Exchange Stationary Phase for Separation of Oligonucleotides

open access: yesMolecules, 2022
Oligonucleotides are used in many research areas. Thus, there is a need for their successful separation methods. Ion-exchange chromatography is the most popular separation technique, but it has limitations for these compounds.
Sylwia Studzińska   +3 more
doaj   +1 more source

The hydrodynamics of countercurrent chromatography in J-type centrifuges [PDF]

open access: yes, 2002
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Countercurrent chromatography (CCC) is an advanced liquid-liquid extraction technique that purifies chemical components from complex mixtures.
Wood, Philip Leslie
core   +6 more sources

Reconsidering Dogmas about the Growth of Bacterial Populations

open access: yesCells, 2023
The growth of bacterial populations has been described as a dynamic process of continuous reproduction and cell death. However, this is far from the reality.
Bettina Ughy   +8 more
doaj   +1 more source

New Stationary Frame Control Scheme for Three Phase PWM Rectifiers Under Unbalanced Voltage Dips Conditions [PDF]

open access: yes, 2010
A new stationary frame control scheme for three-phase pulsewidth-modulation (PWM) rectifiers operating under unbalanced voltage dips conditions is proposed in this paper.
BOJOI, IUSTIN RADU   +5 more
core   +1 more source

Chromatographic and spectroscopic studies on β-cyclodextrin functionalized ionic liquid as chiral stationary phase: Enantioseparation of NSAIDs

open access: yesAdsorption Science & Technology, 2018
Recently, we reported a new chiral stationary phase prepared using β-cyclodextrin functionalized with aromatic ionic liquid which is aimed to enhance the performance of enantioseparation of flavonoids and β-blockers.
Nurul Yani Rahim   +2 more
doaj   +1 more source

The alternative sigma factor SigB of Corynebacterium glutamicum modulates global gene expression during transition from exponential growth to stationary phase [PDF]

open access: yes, 2007
Larisch C, Nakunst D, Hueser AT, Tauch A, Kalinowski J. The alternative sigma factor SigB of Corynebacterium glutamicum modulates global gene expression during transition from exponential growth to stationary phase. BMC Genomics. 2007;8(1): 4.Background:
Andrea T Hüser   +14 more
core   +1 more source

Wavefront tracking within the stationary phase approximation

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2007
A physical optics approach to wavefront tracking is presented based on the stationary phase approximation. It allows for modeling transmission of radiation through a system of optical elements including coherence properties with an acceptable numerical ...
Johannes Bahrdt
doaj   +1 more source

Research Progress in the Preparation and Applications of Hydrophilic Chromatographic Materials for Separation of Monosaccharides and Oligosaccharides [PDF]

open access: yesShipin Kexue
Carbohydrates play a vital role in food science, medicine science, life science and other fields. Carbohydrates can be divided into monosaccharides, oligosaccharides, and polysaccharides, among which monosaccharides and oligosaccharides are mostly ...
ZHANG Dandan, JIAO Ruiwen, MI Chunxiao, CHEN Ju, LI Xiang, WANG Qiukuan, REN Dandan, HE Yunhai, WU Long, ZHOU Hui
doaj   +1 more source

Capillary Gas Chromatographic Separation Performances of a Tetraphenyl Porphyrin Stationary Phase

open access: yesFrontiers in Chemistry, 2022
Tetraphenyl porphyrin (TPP) has enormous potential for use as gas chromatography stationary phases because it has a distinctive extended π–π conjugated coplanar structure and a range of interesting properties such as a good solubility in dichloromethane,
Yuan Yan   +5 more
doaj   +1 more source

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