Results 51 to 60 of about 131,615 (148)

Scratching the Surface: Bacterial Cell Envelopes at the Nanoscale

open access: yesmBio, 2020
The bacterial cell envelope is essential for viability, the environmental gatekeeper and first line of defense against external stresses. For most bacteria, the envelope biosynthesis is also the site of action of some of the most important groups of ...
Albertus Viljoen   +4 more
doaj   +1 more source

Modulation of fibroblast behavior by Leishmania: a pathway to understanding disease progression in cutaneous leishmaniasis

open access: yesBMC Microbiology
Leishmaniasis is a parasitic infection caused by obligatory intracellular protozoa of the Leishmania genus. Macrophages are the main cell for Leishmania parasites that play a key role in immune response against it.
Tarcisio Navegante de Queiroz Filho   +2 more
doaj   +1 more source

The ultrastructure of calcareous cirratulid (Polychaeta, Annelida) tubes [PDF]

open access: yesEstonian Journal of Earth Sciences, 2009
The entire tube wall of Dodecaceria caulleryi and D. coralii is composed of thin calcareous lamellae with a spherulitic prismatic ultrastructure. In Diplochaetetes mexicanus the tube ultrastructure is similar, but contains also some lamellae with a ...
Vinn, Olev
doaj  

Ultrastructure of the spermatozoon of the Chinese water snake, Myrrophis (Enhydris) chinensis (Reptilia: Homalopsidae)

open access: yesThe European Zoological Journal, 2018
Identifying the polymorphism of the spermatozoon ultrastructure of squamates is vital for improving the accuracy of phylogenic analyses. Multiple studies have been conducted to distinguish the similarities and differences among the sperms of squamates ...
S.-L. Hao, Y.-P. Zhang
doaj   +1 more source

The fine structure of the midgut epithelium in Xerobiotus pseudohufelandi (Iharos, 1966) (Tardigrada, Eutardigrada, Macrobiotidae)

open access: yesJournal of Limnology, 2013
The aims of our studies were to describe the ultrastructure of the midgut epithelial cells of the eutardigrade Xerobiotus pseudohufelandi and to determine if there are any differences in the ultrastructure of midgut epithelial cells between males and ...
Magdalena M. Rost-Roszkowska   +4 more
doaj   +1 more source

Anatomy, histology, ultrastructure, parathyroid, rat

open access: yes, 2022
S.330-333Anatomy. Histology. Ultrastructure.
Kittel, B., Ernst, H., Kamino, K.
core   +1 more source

Some Like It Fat: Comparative Ultrastructure of the Embryo in Two Demosponges of the Genus Mycale (Order Poecilosclerida) from Antarctica and the Caribbean [PDF]

open access: yes, 2015
0000-0002-7993-1523© 2015 Riesgo et al. This is an open access article distributed under the terms of the Creative Commons Attribution License [4.0], which permits unrestricted use, distribution, and reproduction in any medium, provided the original ...
Solà, J   +23 more
core   +1 more source

Mapping residual organics and carbonate at grain boundaries and in the amorphous interphase in mouse incisor enamel

open access: yesFrontiers in Physiology, 2015
Dental enamel has evolved to resist the most grueling conditions of mechanical stress, fatigue, and wear. Adding insult to injury, it is exposed to the frequently corrosive environment of the oral cavity.
Lyle M Gordon, Derk eJoester
doaj   +1 more source

The Ultrastructure of the Developing Urodele Notochord

open access: yes, 1962
THE ULTRASTRUCTURE OF THE DEVELOPING URODELE NOTOCHORD The Ultrastructure of the Developing Urodele Notochord (156) (-
Waddington, Conrad Hal Margaret M. Perry
core   +2 more sources

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