Results 41 to 50 of about 176,112 (264)

Determination of environmental flows for the Barbuda stream in the Municipality of Olaya, Antioquia, Colombia

Revista Facultad de Ingeniería Universidad de Antioquia, 2019
La determinación de los caudales ecológicos en fuentes es de gran importancia para el manejo de ríos y embalses, pues se puede determinar la oferta hídrica de las fuentes y ver si son aptas para los diferentes aprovechamientos antrópicos que se quieran ...
Juan Pablo García Montoya, T Vanwalleghem, Juan V. Giráldez, J Morató, Jorge Montoya   +4 more
doaj   +1 more source

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

Advanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff, Simon Holzer, Stefania Konstantinidi, Yoan Civet, Yves Perriard   +4 more
wiley   +1 more source

Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization

Advanced Science, EarlyView.
This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin, Mengjie Zhang, Wenying Liu, Wenlong Shen, Debao Li, Hongming Miao, Fang Deng, Gang Zhang, Yi Tian, Yi Zhang, Zhihu Zhao, Bing Ni   +11 more
wiley   +1 more source

Impact of dextrose supplementation on intraoperative blood glucose levels in pediatric patients undergoing major surgeries under general anesthesia with caudal analgesia

Journal of Anaesthesiology Clinical Pharmacology
Background and Aims: In children undergoing surgery, the stress responses of surgery can result in blood glucose elevation consequent to release of cortisol and catecholamines.
Sruthi C. Babu, Dimple E. Thomas, Reshmy Thomas, Geethu Sebastian, Lakshmi Kumar   +4 more
doaj   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

Advanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon, Kyungchul Noh, Minkyu Hwang, Yoon‐Jung Kim, Unjin Lee, Yeon Joo Ryu, Je‐Kyung Ryu, Sang Beom Jun, Se‐Young Choi, Woo‐Hyun Cho, Sung Joong Lee   +10 more
wiley   +1 more source

A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes

Advanced Science, EarlyView.
We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen, Zixing Xu, Zerun Hao, Yanming Chen, Kai Xie, Haofan Yin, Xueying Wang, Jie Min, Sihan Sun, Baiding Chen, Chengxiu Ling, Mingming Xu, Yizhao Chen, Gang Ruan   +13 more
wiley   +1 more source

Comparison of caudal bupivacaine and dexmedetomidine with caudal bupivacaine and intravenous dexmedetomidine for postoperative analgesia in children: A randomized controlled trial

Journal of Anaesthesiology Clinical Pharmacology
Background and Aims: Caudal block is a part of multimodal analgesic regimen to alleviate pain in pediatric patients undergoing variety of surgeries. This study compares the effectiveness of caudal versus intravenous dexmedetomidine as an additive to ...
Kuldeep Singh, Jeetendra Bajaj, Sapna Bathla, Khushboo Mehta   +3 more
doaj   +1 more source

A Tac1‐Expressing Brainstem Pathway Underlies the Pathogenesis of Trigeminal Neuralgia

Advanced Science, EarlyView.
A critical TG‐Sp5CTac1‐PBNTac1 pathway drives trigeminal neuropathic pain (TNP). Tac1‐expressing parabrachial nucleus (PBNTac1) neurons exhibit heightened responses to innocuous stimuli in TNP, and chemogenetic inhibition of these neurons effectively prevents TNP development.
Liting Sun, Jia‐Jia Wang, Xiang‐Yu Li, Xin‐Yi Lin, Juan Li, Qiu‐Tong Yu, Zi‐Han Wang, Xue‐Ping Gao, Lei Jin, Wei‐Ke Li, Tian‐Lin Cheng, Juan Deng   +11 more
wiley   +1 more source

Elevated TRIM25 Impairs Poly (ADP‐ribose) Metabolism via PARG Degradation and Mediates Compression‐Induced Intervertebral Disc Degeneration

Advanced Science, EarlyView.
TRIM25 acts as a multifunctional hub driving intervertebral disc degeneration under mechanical stress. Mechanical compression significantly upregulates TRIM25 expression, establishing it as a key E3 ubiquitin ligase platform. TRIM25 targets PARG and Ku80 via distinct molecular interfaces, triggering their ubiquitination and degradation.
Zhangrong Cheng, Haiyang Gao, Wenbo Wu, Pengzhi Shi, Xianglong Chen, Zimu Yu, Wang Wu, Kangcheng Zhao, Cao Yang, Yukun Zhang   +9 more
wiley   +1 more source

Comparison of Clinical Effects and Physical Examination of Transforaminal and Caudal Steroid Injection With Targeted Catheter in Lumbar Radiculopathy: A Single‐Blind Randomized Clinical Trial

Brain and Behavior
Background Transforaminal and caudal epidural injections are two methods of steroid injection in lumbar radiculopathy. Using a targeted catheter with the possibility of accessing the involved spinal roots and steroid administration selectively next to ...
Farnad Imani, Faezeh Mohammad‐Esmaeel, Seyedeh‐Fatemeh Morsalli, Ali Ahani‐Azari, Mahzad Alimian, Nasim Nikoubakht, Azadeh Emami   +6 more
doaj   +1 more source