Results 131 to 140 of about 56,164 (284)

Joint pilot power adjustment and base station assignment for data traffic in cellular CDMA networks

open access: yes, 2004
A novel framework to model the problem of downlink resource allocation in heterogeneous CDMA cellular networks is presented which leads to utilizing the network resources in more efficient way.
Navaie, Keivan, Shabany, Mahdi
core  

Paternal Circadian Disruption Impairs Offspring Cognition via Sperm microRNAs

open access: yesAdvanced Science, EarlyView.
Paternal circadian disruption remodels the sperm small RNA payload, elevating miR‐92a‐3p/miR‐25‐3p levels and perturbing early embryonic gene regulatory programs. Microinjection experiments and single‐embryo transcriptomics reveal sex‐specific developmental vulnerabilities, ultimately impairing offspring hippocampal synaptic plasticity and cognition ...
Kexin Zou   +22 more
wiley   +1 more source

Coase and Car Repair: Who Should Be Responsible for Emissions of Vehicles in Use? [PDF]

open access: yes
This paper examines the current assignment of liability for in-use vehicle emissions and suggests some alternative policies that may reduce the cost and increase the effectiveness.
Harrington, Winston, McConnell, Virginia
core  

Canagliflozin Alleviates Diabetic Glomerular Endothelial Injury via Melibiose in a Microbiota‐Dependent Manner

open access: yesAdvanced Science, EarlyView.
Canagliflozin treatment reshapes the gut microbiota in DKD and elevates levels of melibiose, a metabolite derived from Roseburia intestinalis. Melibiose directly binds to and enhances the enzymatic activity of glyoxalase 1, leading to decreased methylglyoxal accumulation.
Wei Zhang   +32 more
wiley   +1 more source

Pilot Sequence Assignment for Spatially Correlated Massive MIMO Circumstances [PDF]

open access: yesKSII Transactions on Internet and Information Systems, 2019
Pengxiang Li 0001   +3 more
openaire   +1 more source

Inhibition of SIRT7 Overcomes Radioresistance in Pancreatic Neuroendocrine Tumors by Reactivating MEN1 Expression

open access: yesAdvanced Science, EarlyView.
Pancreatic neuroendocrine tumors frequently silence MEN1 through epigenetic mechanisms. Here, SIRT7 recruits DNMT1 to the MEN1 promoter, drives hypermethylation, and enhances DNA repair. Inhibiting SIRT7 restores MEN1, reduces MRN complex abundance, impairs double‐strand break repair, and sensitizes PanNET models to radiation, supporting SIRT7 as a ...
Jianyun Jiang   +11 more
wiley   +1 more source

Tumor‐Derived LAMB3 Drives Immunosuppressive LRRC15+ Fibroblast Formation During Pancreatic Ductal Adenocarcinoma Development

open access: yesAdvanced Science, EarlyView.
A single‐cell atlas of pancreatic ductal adenocarcinoma development reveals progressive ductal‐fibroblast‐immune crosstalk. Tumor‐derived LAMB3 drives the formation of immunosuppressive LRRC15+ fibroblasts through the ITGB1/FAK/MAPK/FOSL2 signaling. Glycolytic reprogramming upregulates LAMB3 and correlates with LRRC15+ fibroblast enrichment.
Xuqing Shi   +23 more
wiley   +1 more source

Pilot Assignment for Joint Channel Estimation and PTS to Reduce PAPR of OFDM Signals

open access: yes, 2012
[[abstract]]部分傳輸序列 (PTS) 技術是一種有效降減正交分頻多工訊號 (OFDM) 峰均值比 (PAPR) 的方式;然而常見的PTS技術需要傳送旁資訊 (SI) 至接收端才能將原始訊號還原。對於這個問題,已有文獻提出一種聯合通道估測及PTS技術 (CE-PTS) 的方法。這種方法利用梳型導引訊號配置可以在沒有SI的情況下藉由通道估測即可以直接回復原始OFDM訊號,然而梳型導引訊號配置中部分訊號用到線性外插的精確度較差會使系統的錯誤機率增加。本論文中我們提出兩種新的導引訊號配置的方法 ...
黃炳勳, Huang Ping-Hsun
core  

Study of Free‐Space Optical Quantum Network: Review and Prospectives

open access: yesAdvanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Multi-Cell MMSE Processing and Pilot Assignment in Massive MIMO under Correlated Fading [PDF]

open access: yes
This paper investigates a multi-cell massive MIMO network subject to spatially correlated Rayleigh fading, where pilot reuse occurs both within and across cells.
Vosoughi, Azadeh, Elyasi, Masoud
core  

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