Results 111 to 120 of about 412,161 (357)

A Modeling approach for analysis and improvement of spindle-holder-tool assembly dynamics [PDF]

open access: yes, 2006
The most important information required for chatter stability analysis is the dynamics of the involved structures, i.e. the frequency response functions (FRFs) which are usually determined experimentally.
A. Ertürk   +14 more
core   +2 more sources

An Organ‐on‐Chip Platform for Strain‐Controlled, Tissue‐Specific Compression of Cartilage and Mineralized Osteochondral Interface to Study Mechanical Overloading in Osteoarthritis

open access: yesAdvanced Healthcare Materials, EarlyView.
A mechanically active OsteoChondral Unit (OCU)‐on‐Chip platform mimicking the OCU's functional anatomy and the strain gradient across the osteochondral interface is presented. Upon compartment‐specific hyperphysiological compression, the model replicates mechanisms observed in osteoarthritis (OA) progression, such as calcium crystal accumulation ...
Andrea Mainardi   +10 more
wiley   +1 more source

Tool post modification allows easy turret lathe cutting-tool alignment [PDF]

open access: yes, 1966
Modified tool holder and tool post permit alignment of turret lathe cutting tools on the center of the spindle. The tool is aligned with the spindle by the holder which is kept in position by a hydraulic lock in feature of the tool post. The tool post is
Fouts, L.
core   +1 more source

The mitotic spindle checkpoint [PDF]

open access: yesCurrent Biology, 2001
Fantastic progress has been made in understanding the spindle checkpoint, the guardian of balanced chromosome segregation. However, several basic questions and many details remain to be worked out. In the meantime, the use of chimeric fluorescent proteins and ever better imaging technology has enhanced the stunning videos of mitosis made today ...
openaire   +3 more sources

ROS‐Scavenging Multifunctional Microneedle Patch Facilitating Wound Healing

open access: yesAdvanced Healthcare Materials, EarlyView.
A reactive oxygen species (ROS) scavenging and immunomodulatory microneedle patch based on hyaluronic acid methacrylate (HaMA) and Flightless I (Flii)‐siRNA‐laden arginine functionalized poly (β‐amino ester)/alginate particles is developed for chronic wound healing applications.
Mahshid Kharaziha   +4 more
wiley   +1 more source

Mad2, Bub3, and Mps1 regulate chromosome segregation and mitotic synchrony in Giardia intestinalis, a binucleate protist lacking an anaphase-promoting complex. [PDF]

open access: yes, 2014
The binucleate pathogen Giardia intestinalis is a highly divergent eukaryote with a semiopen mitosis, lacking an anaphase-promoting complex/cyclosome (APC/C) and many of the mitotic checkpoint complex (MCC) proteins.
Cande, W Zacheus, Vicente, Juan-Jesus
core   +2 more sources

Early onset of APC/C activity renders SAC inefficient in mouse embryos

open access: yesFrontiers in Cell and Developmental Biology
Control mechanisms of spindle assembly and chromosome segregation are vital for preventing aneuploidy during cell division. The mammalian germ cells and embryos are prone to chromosome segregation errors, and the resulting aneuploidy is a major cause of ...
Adela Horakova   +9 more
doaj   +1 more source

At the Pointy End of Mechanobiology: AFM for Transient Biomechanical Analysis

open access: yesAdvanced Healthcare Materials, EarlyView.
Stem cell mechanosensitivity governs lineage commitment through mechanotransduction, but capturing these transient changes in living cells remains challenging. Advanced atomic force microscopy enables high‐resolution analysis of mechanical properties, real‐time protein distribution, and gene expression, offering fresh insights into cell‐environment ...
Kaiwen Zhang   +5 more
wiley   +1 more source

A novel chromosome segregation mechanism during female meiosis. [PDF]

open access: yes, 2016
In a wide range of eukaryotes, chromosome segregation occurs through anaphase A, in which chromosomes move toward stationary spindle poles, anaphase B, in which chromosomes move at the same velocity as outwardly moving spindle poles, or both. In contrast,
Cortes, Daniel B   +4 more
core   +1 more source

Novel 3D‐Printed Biophotonic Scaffold Displaying Luminescence under Near‐Infrared Light for Photopharmacological Activation and Biological Signaling Compound Release

open access: yesAdvanced Healthcare Materials, EarlyView.
Despite significant efforts in developing novel biomaterials to regenerate tissue, only a few of them have successfully reached clinical use. It has become clear that the next generation of biomaterials must be multifunctional. Smart biomaterials can respond to environmental or external stimuli, interact in a spatial‐temporal manner, and trigger ...
Sonya Ghanavati   +12 more
wiley   +1 more source

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