Results 121 to 130 of about 412,161 (357)

Method of tracing contour patterns for use in making gradual contour resin matrix composites [PDF]

open access: yes, 1983
The invention relates to methods for making alminate patterns for a resin matrix composite structural component. A sheet of paper is temporarily adhered to a model of the structrual component.
Fontes, M. J.
core   +1 more source

Checkpoint proteins come under scrutiny [PDF]

open access: yes, 2013
Details are emerging of the interactions between the kinetochore and various spindle checkpoint proteins that ensure that sister chromatids are equally divided between daughter cells during cell ...
Millar, Jonathan B. A.   +1 more
core   +1 more source

Revised and Improved Procedure for Immunolocalization of Male Meiotic Chromosomal Proteins and Spindle in Plants without the Use of Enzymes

open access: yesPlants, 2018
Immunolocalization studies to visualize the distribution of proteins on meiotic chromosomes have become an integral part of studies on meiosis in the model organism Arabidopsis thaliana.
Kuntal De   +2 more
doaj   +1 more source

Norbornene Homopolymerization Limits Cell Spreading in Thiol–Ene Photoclick Hydrogels

open access: yesAdvanced Healthcare Materials, EarlyView.
Thiol–norbornene click reactions are often used in the development of cell‐permissive 3D hydrogels. However, ene–ene crosslinks in other thiol–ene systems are known to limit permissivity. This study demonstrates the negative effects of norbornene homopolymerization on 3D cell spreading and circumvents the issue by modulating polymer degree of ...
James L. Gentry, Steven R. Caliari
wiley   +1 more source

Mechanisms of spindle positioning [PDF]

open access: yesJournal of Cell Biology, 2013
Accurate positioning of spindles is essential for asymmetric mitotic and meiotic cell divisions that are crucial for animal development and oocyte maturation, respectively. The predominant model for spindle positioning, termed “cortical pulling,” involves attachment of the microtubule-based motor cytoplasmic dynein to the cortex, where it exerts a ...
openaire   +5 more sources

Uniting 4D Printing and Melt Electrowriting for the Enhancement of Regenerative Small Diameter Vascular Grafts

open access: yesAdvanced Healthcare Materials, EarlyView.
A hybrid 4D printing strategy enables the fabrication of shape‐morphing, mechanically reinforced tubular constructs for vascular tissue engineering. By combining alginate‐methylcellulose hydrogels with melt electrowritten polycaprolactone fibers and protein‐based functionalization, this platform supports spatially organized co‐cultures of fibroblasts ...
Max von Witzleben   +8 more
wiley   +1 more source

Poly(hydroxy‐oxazolidone) Thermoplastic Elastomers for Safer, Greener and Customizable Blood‐Contacting Medical Devices

open access: yesAdvanced Healthcare Materials, EarlyView.
A poly(hydroxy‐oxazolidone) (PHOx) is synthesized from CO2‐based precursors, enabling the up‐cycling of this waste material. After synthesis, PHOx shows thermoplastic properties, and can therefore be processed by many temperature‐dependent techniques. PHOx is hemocompatible, anti‐adhesive, and biocompatible, which is demonstrated in vitro and in vivo ...
Sofia F. Melo   +11 more
wiley   +1 more source

Chromosome movement in lysed mitotic cells is inhibited by vanadate. [PDF]

open access: yes, 1978
Mitotic PtK1 cells, lysed at anaphase into a carbowax 20 M Brij 58 solution, continue to move chromosomes toward the spindle poles and to move the spindle poles apart at 50% in vivo rates for 10 min.
CANDE, W. Zacheus, Wolniak, S
core   +1 more source

The turtle and the rabbit story in a modern (PI3)key

open access: yesMolecular & Cellular Oncology, 2018
Mitosis is a complex process controlling proper distribution of chromosomes and preventing genomic instability, a typical hallmark of cancer. We recently reported that that a class II isoform of Phosphoinositide 3-kinase (PI3K), PI3K-C2α, is involved in ...
Miriam Martini   +2 more
doaj   +1 more source

Machine Tool Chatter Identification Based on Dynamic Errors of Different Self-Synchronized Chaotic Systems of Various Fractional Orders

open access: yesIEEE Access, 2019
Chatter, the vibration between the workpiece and cutting tool, is a common phenomenon during the milling process. Traditionally, the Fourier transform analysis is mainly used to extract the features and determine whether chatter occurs. In this paper, an
Bo-Lin Jian   +4 more
doaj   +1 more source

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