The pneumococcal bacteriocin streptococcin B is produced as part of the early competence cascade and promotes intraspecies competition.

Unlabelled: is an important human pathogen that normally resides in the human nasopharynx. Competence-mediated bacteriocin expression by plays a major role in both the establishment and persistence of colonization on this polymicrobial surface. Over 20 distinct bacteriocin loci have been identified in pneumococcal genomes, but only a small number have been characterized phenotypically.

Two pathways to understanding electron transfer in reaction centers from photosynthetic bacteria: A comparison of Rhodobacter sphaeroides and Rhodobacter capsulatus mutants.

The rates, yields, mechanisms and directionality of electron transfer (ET) are explored in twelve pairs of Rhodobacter (R.) sphaeroides and R. capsulatus mutant RCs designed to defeat ET from the excited primary donor (P*) to the A-side cofactors and re-direct ET to the normally inactive mirror-image B-side cofactors.

Addition of community paramedics to a physician home-visit program: A prospective cohort study.

Background: Home-based primary care promotes aging in place but is not immediately responsive to urgent needs. Community paramedicine leverages emergency medical services clinicians to expedite in-home care, though limited evidence supports this model. We evaluated the primary care and acute care use of older adults evaluated urgently by a community paramedic with telemedicine physician compared to a physician home visit model.

High Yield of B-Side Electron Transfer at 77 K in the Photosynthetic Reaction Center Protein from .

The primary electron transfer (ET) processes at 295 and 77 K are compared for the reaction center (RC) pigment-protein complex from 13 mutants including a wild-type control. The engineered RCs bear mutations in the L and M polypeptides that largely inhibit ET from the excited state P* of the primary electron donor (P, a bacteriochlorophyll dimer) to the normally photoactive A-side cofactors and enhance ET to the C-symmetry related, and normally photoinactive, B-side cofactors. P* decay is multiexponential at both temperatures and modeled as arising from subpopulations that differ in contributions of two-step ET ( P* → PB → PH), one-step superexchange ET ( P* → PH), and P* → ground state.

A Mixed Method Study: Defining the Core Learning Needs of Nurses Delivering Care to Children and Young People with Rheumatic Disease to Inform Paediatric Musculoskeletal Matters, a Free Online Educational Resource.

Children and young people with rheumatic diseases and their families are often supported by nurses who may not have had specialist training in paediatric rheumatology. The purpose of our study was to establish the core learning needs of all nurses who may encounter these children and young people in their clinical practice and use this information to inform the content and format of Paediatric Musculoskeletal Matters Nursing (PMM-Nursing) Engagement with nurses working in different roles and with various levels of experience in musculoskeletal medicine informed these learning needs and PMM-Nursing content. Mixed methods ascertained learning needs under the following themes: (1) Need for increased awareness about rheumatic disease; (2) Impact of experience and nursing role; (3) Need for increased knowledge about rheumatic disease and management.