Results 111 to 120 of about 44,195 (310)

Influence of M-phase chromatin on the anisotropy of microtubule asters [PDF]

, 1996
In many eukaryotic cells going through M-phase, a bipolar spindle is formed by microtubules nucleated from centrosomes. These microtubules, in addition to being "captured" by kinetochores, may be stabilized by chromatin in two different ways: short-range
Dogterom, M., Félix, M. A., Guet, C. C., Leibler, S.   +3 more
core   +2 more sources

Decoding Human Placental Cellular and Molecular Responses to Obesity and Fetal Growth

Advanced Science, EarlyView.
Women with obesity often deliver large‐for‐gestational‐age (LGA) infants. Single‐nucleus RNA sequencing of term placenta reveals that hypoxia and TNF‐α signaling in syncytiotrophoblasts are featured in maternal obesity, but inflammatory signatures in Hofbauer cells and response to lipid or carbohydrate metabolism in fibroblasts are specific to LGA.
Hong Jiang, Emilie Derisoud, Denise Parreira, Nayere Taebnia, Paulo R. Jannig, Reza Zandi Shafagh, Allan Zhao, Congru Li, Macarena Ortiz, Manuel Alejandro Maliqueo, Elisabet Stener‐Victorin, Volker M. Lauschke, Qiaolin Deng   +12 more
wiley   +1 more source

Power sequence definition under woodworking milling on contour-milling machines

Advanced Engineering Research, 2017
Introduction. The analysis of the research papers shows the relevance of this topic, since there are no publications devoted to the determination of the spectral components of the power sequence of the milling process which makes it difficult to analyze ...
Alexander N. Chukarin, Sergey V. Golosnoy   +1 more
doaj   +1 more source

Tracing and Visualizing Variation of Chatter for In-Process Identification of Preferred Spindle Speeds

Procedia CIRP, 2012
AbstractAn analyzer has been developed for the purpose of tracing and visualizing the time dependent variation of chatter in terms of the frequency and the magnitude, and of determining the spindle speed for real-time on-line chatter suppression.The system processes the vibration signal detected either by accelerometer or microphone and first screens ...
Morita, Hiromitsu, Yamashita, Toru
openaire   +1 more source

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

Advanced Science, EarlyView.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao, Ata Golparvar, Mohammad Javad Bathaei, Filipe Arroyo Cardoso, Clementine M. Boutry   +4 more
wiley   +1 more source

Displacements analysis of self-excited vibrations in turning

, 2009
The actual research deals with determining by a new protocol the necessary parameters considering a three-dimensional model to simulate in a realistic way the turning process on machine tool.
A Cowley, A Moufki, Alain Gérard, AV Dassanayake, C Mei, CF Bisu, CK Chen, Claudiu F. Bisu, DA Axinte, DE Dimla Sr, HE Merrit, I Marinescu, IN Tansel, JD Calderon-Najera, Jean-Yves K’nevez, K Liu, LZ Qiang, M Thomas, O Cahuc, O Cahuc, PG Benardos, Philippe Darnis, RL Kegg, W Grzeski, X Li, Y Sahin, YS Chiou   +26 more
core   +1 more source

Suppression of Chatter in High Speed Milling Machine Using Spindle Speed Variation Method with Acoustic Feedback PID Controller

Journal of Intelligent Manufacturing & Mechatronics, 2019
High speed milling (HSM) process limited by tool failure and dynamic instabilities due to the influence of relative vibration between tool and workpiece, so called chatter. Chatter vibration literally responsible for lower productivity and poor surface quality.
Madan Varmma Suparmaniam, Ahmad Razlan Yusoff   +1 more
openaire   +2 more sources

CD168 Identifies Proliferating Pancreatic Islet Cells in Murine and Human

Advanced Science, EarlyView.
This study identifies CD168 as a conserved surface marker for proliferating β‐cells in mouse, human islets, and pancreatic islet tumors. CD168⁺ cells show high proliferation and low insulin expression. CD168+ cells form mostly uni‐β lineage clones, and some of the clones are multi‐lineage.
Shubo Yuan, Jiafu Li, Min Shao, Haili Bao, Ajun Geng, Jialin Yang, Yu Tao, Xinyi Chen, Tianxiong Xiao, Chunye Liu, Zhiyao Xie, Wenqian Song, Qing Cissy Yu, Hongxing Fu, Xu Han, Taochen He, Wenquan Wang, Jianfeng Chen, Sheng Yan, Shaohua Song, Liang Liu, Yi Arial Zeng   +21 more
wiley   +1 more source

Modelling and simulation of the dynamic cutting process and surface topography generation in nano/micro cutting [PDF]

, 2008
In nano/micro cutting process, the surface quality is heavily dependent on all the dynamic factors in machining including those from the material, tooling, cutting parameters, servo accuracy, mechanical structure deformation, and non-linear factors as ...
Cheng, K, Zhou, L
core  

A Biomarker‐Driven Ovary–Endometrium Organ‐on‐a‐Chip Mimicking 3D Multicellular Complexity and Menstrual Cyclicity for Predicting Reproductive Toxicity

Advanced Science, EarlyView.
We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim, Eun‐kyung Min, Choon‐Mi Lee, Chan Hum Park, Byung‐Chul Oh, YunJae Jung, In‐Sun Hong   +6 more
wiley   +1 more source