Results 71 to 80 of about 2,151,988 (346)

Purification of Lindblad dynamics, geometry of mixed states and geometric phases

, 2018
We propose a nonlinear Schr\"odinger equation in a Hilbert space enlarged with an ancilla such that the partial trace of its solution obeys to the Lindblad equation of an open quantum system. The dynamics involved by this nonlinear Schr\"odinger equation
Viennot, David
core   +3 more sources

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada, Makoto Harada, Tadahiko Kikugawa, Takeshi Nakata, Koji Hashimoto, Tsuneo Konta, Yuji Kamijo   +6 more
wiley   +1 more source

某污水厂MBR膜超年限运行的关键因素评估

Jingshui jishu
【目的】膜生物反应器(MBR)工艺因其出水水质好和占地面积小等优点在城镇污水处理领域(尤其是地下污水处理厂)应用广泛，但膜材质固有缺陷引发的长期运行问题(高断丝率、膜通量衰减、出水水质波动),成为制约MBR发展的首要影响因素，且导致其工艺投资及运行成本均较高。【方法】华南地区某市政污水厂MBR运营人员通过优化工艺调控策略，将设计寿命为5年的中空纤维超滤膜的实际运行寿命延长至10年，且该批MBR出水水质优于一级A标准，并未出现明显的截留效能下降问题 ...
CHEN Zebin, ZHANG Yingyu, TANG Xia
doaj   +1 more source

Connections and Metrics Respecting Standard Purification

, 1998
Standard purification interlaces Hermitian and Riemannian metrics on the space of density operators with metrics and connections on the purifying Hilbert-Schmidt space.
A. Uhlmann, Bures D. J. C., Dittmann J., Ingarden R. S., J. Dittmann   +4 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

HBP21 Alleviates Sepsis-Induced Acute Kidney Injury by Targeting PI3K/AKT-Mediated M1 Macrophage Polarization

Mediators of Inflammation
Conclusion: These findings suggest that HBP21 mitigates S-AKI pathogenesis via PI3K/AKT-mediated M2 macrophage polarization, underscoring its translational potential in renal injury therapy.
Na An, Mingzhi Xu, Ruman Chen, Cuijuan Wang, Yafei Bai   +4 more
doaj   +1 more source

Association between the serum uric acid-to-creatinine ratio and cardiovascular mortality in maintenance hemodialysis patients

Renal Failure
Background Uric acid is a risk factor for death in hemodialysis patients, but its exact role is still unclear. The serum uric acid-to-serum creatinine (SUA/SCr) ratio is a new indicator. This study aimed to clarify the relationship between this indicator
Wanqing Huang, Ning Ding, Yanping Zhang, Dongxia Qiu, Lin Wei, Chen Zhao, Zhuo Ren, Qian Wang, Kaiming Ren, Jiuxu Bai, Ning Cao   +10 more
doaj   +1 more source

Cardiac valve calcification and risk of cardiovascular or all-cause mortality in dialysis patients: a meta-analysis

BMC Cardiovascular Disorders, 2018
Background Vascular calcification is a risk factor for the pathogenesis of cardiovascular disease and mortality in dialysis patients. Nevertheless, the association between cardiac valve calcification (CVC) and the outcome of dialysis is still illusive ...
Zhe Wang, Aili Jiang, Fang Wei, Haiyan Chen   +3 more
doaj   +1 more source

The effect of refined nursing intervention on patients undergoing maintenance hemodialysis in the hemodialysis center during the COVID-19 epidemic

BMC Nursing, 2021
Background The outbreak of novel coronavirus pneumonia has exerted considerable psychological pressure on patients undergoing hemodialysis, resulting in unhealthy psychological emotions.
Qing-Lai Zhang, Shuo Wang, Yue Zhang, Fei Meng   +3 more
doaj   +1 more source

Quantum communication cost of preparing multipartite entanglement

, 2006
We study the preparation and distribution of high-fidelity multi-party entangled states via noisy channels and operations. In the particular case of GHZ and cluster states, we study different strategies using bipartite or multipartite purification ...
C. Crépeau, Caroline Kruszynska, E. N. Maneva, Hans J. Briegel, M. A. Nielsen, Simon Anders, Wolfgang Dür   +6 more
core   +1 more source