Results 1 to 10 of about 350,979 (277)

YjbH mediates the oxidative stress response and infection by regulating SpxA1 and the phosphoenolpyruvate-carbohydrate phosphotransferase system (PTS) in Listeria monocytogenes

open access: yesGut Microbes, 2021
The foodborne pathogen Listeria monocytogenes relies on its ability to fine-tune the expression of virulence factors and stress regulators in response to rapidly changing environments.
Changyong Cheng   +7 more
doaj   +1 more source

Proposed Combined PTS with Clipping and Filtering Technique for PAPR Reduction in OFDM System [PDF]

open access: yesEngineering and Technology Journal, 2012
One of the major drawbacks of OFDM is high Peak-to-Average Power Ratio(PAPR) which can result in poor power efficiency and serious distortion in the transmitter amplifier.
Ghanim Abd AL Kareem
doaj   +1 more source

Kribbellichelins A and B, Two New Antibiotics from Kribbella sp. CA-293567 with Activity against Several Human Pathogens

open access: yesMolecules, 2022
Current needs in finding new antibiotics against emerging multidrug-resistant superbugs are pushing the scientific community into coming back to Nature for the discovery of novel active structures.
Jorge R. Virués-Segovia   +11 more
doaj   +1 more source

Complete Genome Sequence Analysis of Kribbella sp. CA-293567 and Identification of the Kribbellichelins A & B and Sandramycin Biosynthetic Gene Clusters

open access: yesMicroorganisms, 2023
Minor genera actinomycetes are considered a promising source of new secondary metabolites. The strain Kribbella sp. CA-293567 produces sandramycin and kribbellichelins A & B In this work, we describe the complete genome sequencing of this strain and the ...
Marina Sánchez-Hidalgo   +4 more
doaj   +1 more source

The pediatric leukemia oncoprotein NUP98-KDM5A induces genomic instability that may facilitate malignant transformation

open access: yesCell Death and Disease, 2023
Pediatric Acute Myeloid Leukemia (AML) is a rare and heterogeneous disease characterized by a high prevalence of gene fusions as driver mutations. Despite the improvement of survival in the last years, about 50% of patients still experience a relapse. It
Joan Domingo-Reinés   +13 more
doaj   +1 more source

Tracing root permeability: comparison of tracer methods

open access: yesBiologia Plantarum, 2016
Root epidermis and apoplastic barriers (endodermis and exodermis) are the critical root structures involved in setting up plant-soil interface by regulating free apoplastic movement of solutes within root tissues. Probing root apoplast permeability with "
E. Pecková, E. Tylová, A. Soukup
doaj   +1 more source

Support during birth interacts with prior trauma and birth intervention to predict postnatal post-traumatic stress symptoms [PDF]

open access: yes, 2011
Background: Many women experience childbirth as traumatic and 2% develop post-traumatic stress disorder (PTSD). This study examined the role of health practitioner support and personal control during birth as predictors of PTS symptoms, adjusting for ...
Elizabeth Ford   +6 more
core   +1 more source

Real-world efficacy and safety of nivolumab in previously-treated metastatic renal cell carcinoma, and association between immune-related adverse events and survival: the Italian expanded access program [PDF]

open access: yes, 2019
Background: The Italian Renal Cell Cancer Early Access Program was an expanded access program that allowed access to nivolumab, for patients (pts) with metastatic renal cell carcinoma (mRCC) prior to regulatory approval.
Buti, S   +22 more
core   +3 more sources

Synthesis of Pt(II)−Pt(II) and Pt/Pd(II)−Pt(0) Monoalkynylphosphine Bridging Complexes

open access: yesOrganometallics, 2002
The monoalkynylphosphine complexes cis-[Pt(C 6F 5) 2(PPh 2CCR)(tht)] (R = Ph 1a, Tol 1b, tBu 1e, tht = tetrahydrothiophene) have been prepared by bridge splitting [{Pt(C 6F 5) 2(-tht)} 2] or by displacement of only one tht ligand from cis- [Pt(C 6F 5) 2(tht) 2] with PPh 2CCR.
Forniés, J.   +4 more
openaire   +3 more sources

A novel generalized oppositional biogeography-based optimization algorithm: application to peak to average power ratio reduction in OFDM systems

open access: yesOpen Mathematics, 2016
A major drawback of orthogonal frequency division multiplexing (OFDM) signals is the high value of peak to average power ratio (PAPR). Partial transmit sequences (PTS) is a popular PAPR reduction method with good PAPR reduction performance, but its ...
Goudos Sotirios K.
doaj   +1 more source

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