Results 61 to 70 of about 521,849 (282)

To coagulate, ligate, or both: a randomized study comparing the safety and efficacy of two endoscopic approaches for managing gastric antral vascular ectasia in cirrhotic patients

Egyptian Liver Journal, 2022
Background Gastric antral vascular ectasia (GAVE) is an uncommon but important cause of gastrointestinal bleeding in cirrhotic patients. Argon plasma coagulation (APC) is the standard therapy for GAVE.
Mahmoud Abdo, Ahmed Moustafa, Ibrahim Mostafa, Mohammed Salah Abdelbary, Gamaleldin Elatar, Ali Abdel Rahim, Mohamed Abdelhamid, Hanan Abdelhalim   +7 more
doaj   +1 more source

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Alternating Quotients of Fuchsian Groups

Journal of Algebra, 2000
It is shown that any finitely generated non-elementary Fuchsian group has among its homomorphic images all but finitely many of the alternating groups. This settles in the affirmative a conjecture of Graham Higman.
openaire   +2 more sources

Broué’s abelian defect group conjecture for alternating groups [PDF]

Proceedings of the American Mathematical Society, 2003
Let \(n\) be a positive integer and let \(G=S_n\), \(G^+=A_n\) and \(\widetilde G=\Aut(G^+)\). Let \(\mathcal O\) be a complete discrete valuation ring with an algebraically closed residue field \(k={\mathcal O}/J({\mathcal O})\) of prime characteristic \(p\). The main result of this paper is Theorem 3.1. Assume that \(p>2\) and that \(b^+\) is a block
openaire   +1 more source

Fast recognition of alternating groups of unknown degree

, 2013
We present a constructive recognition algorithm to decide whether a given black-box group is isomorphic to an alternating or a symmetric group without prior knowledge of the degree.
Jambor, Sebastian, Leuner, Martin, Niemeyer, Alice C., Plesken, Wilhelm   +3 more
core   +1 more source

Overview of molecular signatures of senescence and associated resources: pros and cons

FEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas, Sylvia Vagena, Pavlos Pantelis, Giorgos Theocharous, Russel Petty, Konstantinos Evangelou, Vassilis G. Gorgoulis   +6 more
wiley   +1 more source

Conjectures on the normal covering number of finite symmetric and alternating groups [PDF]

International Journal of Group Theory, 2014
Let gamma(Sn) be the minimum number of proper subgroups Hi, i = 1,...,ell, of the symmetric group Sn such that each element in Sn lies in some conjugate of one of the Hi.
Daniela Bubboloni, Cheryl E. Praeger , Pablo Spiga   +2 more
doaj  

Sleepiness while driving and shiftwork patterns among Korean bus drivers

Annals of Occupational and Environmental Medicine, 2017
Background Sleepiness while driving has been regarded as a major cause of death due to traffic accidents. We compared the degree of sleepiness across five different working time periods (first, morning, post-lunch, afternoon, and last) among Korean bus ...
Seyoung Lee, Hyoung-Ryoul Kim, Junsu Byun, Taewon Jang   +3 more
doaj   +1 more source

Thompson’s conjecture for alternating groups

Communications in Algebra, 2018
Let $G$ be a finite group, and let $N(G)$ be the set of sizes of its conjugacy classes. We show that if a finite group $G$ has trivial center and $N(G)$ equals to $N(Alt_n)$ or $N(Sym_n)$ for $n\geq 23$, then $G$ has a composition factor isomorphic to an alternating group $Alt_k$ such that $k\leq n$ and the half-interval $(k, n]$ contains no primes. As
openaire   +2 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source