Results 131 to 140 of about 4,930,166 (237)
, 2015 ANNULUS species-group <p> <b>Simulium annulus</b> (Lundström)</p> <p> Dunbar (1962, characterization, chromosomal key, comparison with <i>S.
Adler, Peter H., Crosskey, Roger W.
core +1 more source
Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank
FEBS Open Bio, EarlyView.Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer +7 more
wiley +1 more source
Septins at the annulus of mammalian sperm
, 2011 The annulus is an electron-dense ring structure connecting the midpiece and the principal piece of the mammalian sperm flagellum. Proteins from the septin family have been shown to localize to the annulus.
Gary R. Hunnicutt +4 more
core +1 more source
FEBS Open Bio, EarlyView.In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey +4 more
wiley +1 more source
Limit cycles for piecewise smooth perturbations of a cubic polynomial differential center
Electronic Journal of Differential Equations, 2015 In this article, we study the planar cubic polynomial differential system $$\displaylines{ \dot{x}=-yR(x,y)\cr \dot{y}=xR(x,y) }$$ where $R(x,y)=0$ is a conic and $R(0,0)\neq 0$.
Shimin Li, Tiren Huang
doaj
FEBS Open Bio, EarlyView.The two catalytic subunits of typhoid toxin dissociate from the holotoxin in the ER of an intoxicated cell, but only CdtB exits the ER to generate immunosuppressive effects. PltA is retained in the ER and sequestered from its cytosolic target, thus allowing the anti‐inflammatory effects of CdtB to promote intestinal colonization.
Maria C. Zabala‐Rodriguez +4 more
wiley +1 more source
Aging and Cancer, EarlyView.This prospective study demonstrates that laparoscopic sphincter‐preserving surgery is feasible for elderly patients. While overall survival reaches 70% at 5 years, advanced T‐stage and the omission of neoadjuvant therapy significantly drive recurrence, highlighting the need for personalized geriatric protocols despite logistical challenges.
Huu Duc Ho +4 more
wiley +1 more source
Batı Karadeniz Tıp Dergisi, 2018 The various causes of congenital duodenal obstruction (CDO) in thenewborn infants are well known but a spesific radiologic diagnosisis difficult to establish.
Zühal Örnek, Duygu Tatlı Uçarcı
doaj
Aging and Cancer, EarlyView.In patients with malignant ureteral obstruction undergoing percutaneous nephrostomy, sarcopenia defined by a low psoas muscle index was independently associated with poor overall survival on multivariate Cox regression analysis, suggesting that preoperative assessment of psoas muscle index may aid prognostic stratification in this population.
Kota Shimokihara +3 more
wiley +1 more source
On the cyclicity of the period annulus of quasi-homogeneous polynomial vector fields
In this article, we study the number of limit cycles, bifurcating from the period annulus of any quasi-homogeneous polynomial vector fields with a center, under a one-parameter polynomial perturbation. We first recharacterize quasi-homogeneous polynomial vector fields and its global center, then we establish an upper bound formula for the number of the
Gavrilov, Lubomir +2 more
openaire +2 more sources