Results 91 to 100 of about 580,719 (297)

Online Codes for Analog Signals

IEEE Transactions on Information Theory, 2019
This paper revisits a classical scenario in communication theory: a waveform sampled at regular intervals is to be encoded so as to minimize distortion in its reconstruction, despite noise. This transformation must be online (causal), to enable real-time signaling; and should use no more power than the original signal. The noise model we consider is an
Leonard J. Schulman, Piyush Srivastava
openaire   +3 more sources

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

A cochlea bio-inspired tunable piezoelectric cantilever array MEMS microphone: comprehensive study

Microsystems & Nanoengineering
This study introduces a bio-inspired AlN-piezoelectric MEMS microphone that showcases a cantilever structure offering adjustable performance, fully emulating the dynamics and tunability observed in the basilar membrane of the mammalian cochlea.
Zhuoyue Zheng, Qingqing Ke, Huahuang Luo, Pan Zhang, Zhiyuan Yan, Chen Wang, Michael Kraft, R. P. Martins, Pui-In Mak, Yuan Wang   +9 more
doaj   +1 more source

Inexpensive, stable circuit measures heart rate [PDF]

, 1965
Inexpensive transistorized circuit provides reliable analog indications of heart rate in response to preamplified electrocardiograph signal applied to its ...
Vick, H. A.
core   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

Drug screening on digital microfluidics for cancer precision medicine

Nature Communications
Drug screening based on in-vitro primary tumor cell culture has demonstrated potential in personalized cancer diagnosis. However, the limited number of tumor cells, especially from patients with early stage cancer, has hindered the widespread application
Jiao Zhai, Yingying Liu, Weiqing Ji, Xinru Huang, Ping Wang, Yunyi Li, Haoran Li, Ada Hang-Heng Wong, Xiong Zhou, Ping Chen, Lianhong Wang, Ning Yang, Chi Chen, Haitian Chen, Pui-In Mak, Chu-Xia Deng, Rui Martins, Mengsu Yang, Tsung-Yi Ho, Shuhong Yi, Hailong Yao, Yanwei Jia   +21 more
doaj   +1 more source

Design of a 0.5 V Chopper-Stabilized Differential Difference Amplifier for Analog Signal Processing Applications. [PDF]

Sensors (Basel), 2023
Fan X, Gao F, Chan PK.
europepmc   +1 more source

Variable word length encoder reduces TV bandwith requirements [PDF]

, 1965
Adaptive variable resolution encoding technique provides an adaptive compression pseudo-random noise signal processor for reducing television bandwidth requirements.
Sivertson, W. E., Jr.
core   +1 more source

Minimum BER Precoding in 1-Bit Massive MIMO Systems

, 2017
1-bit digital-to-analog (DACs) and analog-to-digital converters (ADCs) are gaining more interest in massive MIMO systems for economical and computational efficiency.
Jedda, Hela, Mezghani, Amine, Nossek, Josef A.   +2 more
core   +1 more source

Cis‐regulatory and long noncoding RNA alterations in breast cancer – current insights, biomarker utility, and the critical need for functional validation

Molecular Oncology, EarlyView.
The noncoding region of the genome plays a key role in regulating gene expression, and mutations within these regions are capable of altering it. Researchers have identified multiple functional noncoding mutations associated with increased cancer risk in the genome of breast cancer patients.
Arnau Cuy Saqués, Aracele Martinez‐Mendez, John Crown, Alex Eustace   +3 more
wiley   +1 more source