Results 51 to 60 of about 17,794,323 (210)

Validation of three predictive models for suboptimal cytoreductive surgery in advanced ovarian cancer

open access: yesScientific Reports, 2021
The standard treatment for advanced ovarian cancer (AOC) is cytoreduction surgery and adjuvant chemotherapy. Tumor volume after surgery is a major prognostic factor for these patients.
Antoni Llueca   +5 more
doaj   +1 more source

When participants get involved: reconsidering patient and public involvement in clinical trials at the MRC Clinical Trials Unit at UCL

open access: yesTrials, 2018
Background Patient and public involvement (PPI) in clinical trials aims to ensure that research is carried out collaboratively with patients and/or members of the public.
Claire L. Vale   +7 more
doaj   +1 more source

Fox derivatives: a unique connection between group presentations and the integral group ring [PDF]

open access: yesAdvances in Group Theory and Applications, 2018
We give a criterion to determine whether generators can be removed from a finite presentation via Tietze transformations. We prove that for a generator in a pre- sentation ⟨X|R⟩ to be removable, there must exist a word in the normal closure of relators ...
Aryan Ghobadi
doaj   +1 more source

Group rings with $FC$-nilpotent unit groups

open access: yesPublicacions Matemàtiques, 1991
Let U(RG) be the unit group of the group ring RG. Groups G such that U(RG) is FC-nilpotent are determined, where R is the ring of integers Z or a field K of characteristic ...
openaire   +6 more sources

How do older adults with multimorbidity navigate healthcare?: a qualitative study in Singapore

open access: yesBMC Primary Care, 2023
Background Patients living with multimorbidity may require frequent visits to multiple healthcare institutions and to follow diverse medical regimens and advice.
Poay Sian Sabrina Lee   +7 more
doaj   +1 more source

MicroRNA-138-5p Targets Pro-Apoptotic Factors and Favors Neural Cell Survival: Analysis in the Injured Spinal Cord

open access: yesBiomedicines, 2022
The central nervous system microRNA miR-138-5p has attracted much attention in cancer research because it inhibits pro-apoptotic genes including CASP3. We hypothesize that miR-138-5p downregulation after SCI leads to overexpression of pro-apoptotic genes,
Rodrigo M. Maza   +7 more
doaj   +1 more source

Group rings with metabelian unit groups

open access: yesJournal of Pure and Applied Algebra, 2022
Let \(G\) be a group, \(F\) a field of positive characteristic \(p\) and denote by \(FG\) the group algebra of \(G\) over \(F\) and by \(U(FG)\) the unit group of \(FG\). Describing the structure of \(U(FG)\) is a notoriously difficult problem.
Juhasz, Tibor, Spinelli, Ernesto
openaire   +2 more sources

GROUP ALGEBRAS WHOSE GROUP OF UNITS IS POWERFUL [PDF]

open access: yesJournal of the Australian Mathematical Society, 2009
AbstractA p-group is called powerful if every commutator is a product of pth powers when p is odd and a product of fourth powers when p=2. In the group algebra of a group G of p-power order over a finite field of characteristic p, the group of normalized units is always a p-group. We prove that it is never powerful except, of course, when G is abelian.
openaire   +2 more sources

Visual outcomes after vitrectomy for epiretinal membrane in pseudophakic eyes with a diffractive trifocal intraocular lens: a retrospective cohort study

open access: yesBMC Ophthalmology, 2022
Background Diffractive intraocular lenses (IOLs) could affect visual acuity in patients with macular pathologies such as epiretinal membrane (ERM) and could influence the results of pars plana vitrectomy (PPV) for ERM removal in pseudophakic eyes with ...
Luis Arrevola-Velasco   +6 more
doaj   +1 more source

The bacterial etiology and antimicrobial susceptibility of lower respiratory tract infections in Vietnam

open access: yesAnnals of Clinical Microbiology and Antimicrobials
Background Lower respiratory tract infection (LRTI) remains the leading infectious cause of morbidity and mortality globally. Key bacterial pathogens include Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae, Escherichia coli ...
Tran Thi Ngoc Dung   +17 more
doaj   +1 more source

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