Results 31 to 40 of about 134,453 (255)

Ceramic matrices applied to aerostatic porous journal bearings: material characterization and bearing modeling Matrizes cerâmicas com aplicação em mancais aerostáticos cerâmicos porosos: caracterização do material e modelagem do mancal

Cerâmica, 2010
This paper presents the development of an advanced ceramic material for manufacturing aerostatic porous bearing. The results show that there is homogeneous distribution of the pores in the alumina matrix by using different concentrations of the added ...
Z. C Silveira, R Nicoletti, C. A Fortulan, B. M Purquerio   +3 more
doaj   +1 more source

Influence of the Compaction Pressure and Sintering Temperature on the Mechanical Properties of Porous Titanium for Biomedical Applications [PDF]

, 2019
In the present work, the use of porous titanium is proposed as a solution to the difference in stiffness between the implant and bone tissue, avoiding the bone resorption.
Castillo, Sandra M., Díaz, Eduardo, Muñoz Moreno, Sergio, Torres Hernández, Yadir, Trueba Muñoz, Paloma   +4 more
core   +1 more source

Nanozymes at the Bio‐Nano Interface: From Synthesis, Defect Engineering, Catalytic Behavior in Biological Microenvironments, and Biosafety Implications

Advanced Materials Interfaces, EarlyView.
Nanozymes (NZs) have emerged as versatile artificial enzymes with tunable catalytic properties driven by atomic coordination, defect engineering, and surface chemistry. This review presents a bio–nano interface framework linking synthesis strategies, structural design, and catalytic behavior within complex biological microenvironments.
Karen Guadalupe Quintero‐Garrido, Aída Jimena Velarde‐Salcedo, Alejandro López‐Amador, Noé Arjona, Citlali Uitz Toalá, Carmen Gonzalez, Beatriz Liliana España‐Sánchez   +6 more
wiley   +1 more source

BGN/MDK Axis in the Melanoma Tumor Microenvironment Strengthens Tumor Malignancy by Modulating Cancer Cells and Cancer‐Associated Fibroblasts Crosstalk

Advanced Science, EarlyView.
This study reveals that m6A regulators cooperatively upregulate BGN in melanoma, promoting malignancy. Within the tumor microenvironment, CAFs show highest BGN expression. The BGN/MDK axis mediates cancer‐stroma crosstalk, driving normal fibroblast (NF) activation and enhancing the pro‐tumor effect of CAFs, highlighting a promising therapeutic target ...
Hao‐ze Shi, Ming‐yang Wu, Jin‐quan Liu, Cuicui Tian, Li Ma, Xue‐mei Zhou, Ze‐Hao Sun, Zhi‐yong Xu, Run‐dong Zhang, Shan‐yuan Ye, Li‐ming Huang, Yan Wang, Jing‐shu Xiong, Wen‐bo Bu, Xian‐feng Cheng, Jian‐fang Sun, Hao Chen   +16 more
wiley   +1 more source

Disruption of the SNRPF–DDX24–E2F4 Feedback Loop Uncouples Splicing and Transcriptional Regulation to Suppress Ovarian Cancer Progression

Advanced Science, EarlyView.
This study identifies SNRPF as a critical oncogenic driver in ovarian cancer. By regulating a self‐sustaining SNRPF–DDX24–E2F4 feedback loop through intron retention and nonsense‐mediated decay, SNRPF couples RNA splicing with transcriptional regulation to promote tumor progression.
Yingwei Li, Zhongshao Chen, Qianqian Gao, Yuehan Gao, Ning Yang   +4 more
wiley   +1 more source

Конструктивные решения несъемной железобетонной опалубки для комплексного повышения эксплуатационных качеств гражданских зданий [PDF]

, 2015
The objective of this article is to analyze and propose ways of improving unskimed reinforced formwork being a forming unit of civic building performance.
Ananin, M. Yu., Fomin, N. I., Ананьин, М. Ю., Фомин, Н. И.   +3 more
core   +1 more source

Dr. Hans Kohn and the political takeover of the Berlin Medical Society by the National Socialist regime in 1933

The Anatomical Record, EarlyView.
Abstract To solidify their power over society, totalitarian regimes will usually eliminate any dissent, any perceived threats early on. These threats include not only political enemies but also educated and independent segments of society, such as professional associations.
Michael Hortsch
wiley   +1 more source

Comparison of the Oxidation State of Fe in Comet 81P/Wild 2 and Chondritic-Porous Interplanetary Dust Particles

, 2010
The fragile structure of chondritic-porous interplanetary dust particles (CP- IDPs) and their minimal parent-body alteration have led researchers to believe these particles originate in comets rather than asteroids where aqueous and thermal alteration ...
A.J. Westphal, A.L. Butterworth, Bradley, Bradley, Brownlee, Brownlee, Chernick, Dai, Flynn, Flynn, Flynn, Flynn, Fraundorf, Fraundorf, Germani, Ishii, Jarosewich, Kasten, Kelly, Krot, Leroux, Leroux, Liou, M.A. Marcus, MacKinnon, Manceau, Marcus, Marcus, Marcus, Mason, Mason, Mason, Nier, O'Day, Ogliore, Ogliore, R.C. Ogliore, Rambaldi, Rietmeijer, Rubin, S.C. Fakra, Sandford, Schramm, Simon, Stodolna, Thomas, Thomas, Urey, Warren, Warren, Westphal, Westphal, Wooden, Yanai, Z. Gainsforth, Zolensky, Zolensky, Zolensky   +57 more
core   +1 more source

The Significance of Multiple Saturation Points in the Context of Polybaric Near-fractional Melting [PDF]

, 2004
Experimental petrologists have successfully located basaltic liquid compositions parental to mid-ocean ridge basalt that are, within experimental resolution, multiply saturated with three-phase harzburgite or four-phase lherzolite assemblages on their ...
Asimow, Paul D., Longhi, John
core   +2 more sources

Real time in vivo efficacy monitoring of desialylation and perforation enhanced immunotherapy of cancer

BMEMat, EarlyView.
A multifunctional nanomedicine is designed to engineer NK cells for enhanced cancer immunotherapy through perforation and desialylation, enabling real‐time monitoring of ATP and GrB levels for precise efficacy assessment. Abstract Efficient enhanced NK cell therapy is of critical importance in the immune treatment of cancer.
Yuanjiao Yang, Yuru Wang, Xuemei Li, Chaoyi Yang, Yuhui Yang, Yanyun Fang, Lin Ding, Yunlong Chen, Huangxian Ju   +8 more
wiley   +1 more source