Results 71 to 80 of about 6,238 (217)

Geometrically controlled ratchet effect with collective vortex motion

New Journal of Physics, 2015
Rectified flux motion arising from the collective effect of many interacting vortices is obtained in a specially designed superconducting device. Ratchet structures with different asymmetric pinning potentials are generated by tuning the size, depth, and
V Rouco, A Palau, C Monton, N Del-Valle, C Navau, A Sanchez, X Obradors, T Puig   +7 more
doaj   +1 more source

Laparoscopic Methylene Blue Photodynamic Therapy for Intraabdominal Infection: A Preclinical Feasibility Study in a Rabbit Model of Perforated Appendicitis

Lasers in Surgery and Medicine, EarlyView.
ABSTRACT Objectives Perforated appendicitis commonly results in intra‐abdominal infection requiring prolonged antibiotic therapy. Intraoperative antimicrobial adjuncts are limited, and photodynamic therapy (PDT) may provide a targeted, resistance‐independent approach.
Timothy M. Baran, Korry T. Wirth, Matthew M. Byrne, Benjamin Gertsen, Eric Y. Wang, Darrian S. Hawryluk, Martin S. Pavelka, Nicole A. Wilson   +7 more
wiley   +1 more source

The Impact of Income Disparity on Food Consumption—Microdata from Rural China

Agriculture
This paper examines the relationship between income inequality and consumption, utilizing panel data from rural China over a span of four years to validate the application of relative income theory in the domain of food consumption.
Jing Li, Kelin Chen, Chao Yan, Zhong Tang   +3 more
doaj   +1 more source

Topological protection of multiparticle dissipative transport

Nature Communications, 2016
Transport of a collection of classical particles involves thermal ratchet effect or adiabatic motion, which brings complexity to control multiparticle transport. Here, Loehr et al.
Johannes Loehr, Michael Loenne, Adrian Ernst, Daniel de las Heras, Thomas M. Fischer   +4 more
doaj   +1 more source

Effects of adjustable‐volume transfemoral prosthetic sockets on balance and falls: A randomized clinical trial

PM&R, EarlyView.
Abstract Background Adjustable‐volume prosthetic sockets have been developed to allow users to accommodate volume fluctuations throughout the day. Improvement in socket fit is thought to enhance the connection between the user's residual limb and prosthesis and may therefore improve postural control and balance.
Deanna H. Gates, Jeffrey Wensman, Anthony R. Gutierrez, Jordan Kartes, Marco A. Avalos, Jenevieve A.W. Surkin, Noah J. Rosenblatt   +6 more
wiley   +1 more source

HDX-MS reveals nucleotide-dependent, anti-correlated opening and closure of SecA and SecY channels of the bacterial translocon

eLife, 2019
The bacterial Sec translocon is a multi-protein complex responsible for translocating diverse proteins across the plasma membrane. For post-translational protein translocation, the Sec-channel – SecYEG – associates with the motor protein SecA to mediate ...
Zainab Ahdash, Euan Pyle, William John Allen, Robin A Corey, Ian Collinson, Argyris Politis   +5 more
doaj   +1 more source

Electrochemical investigation of radical‐radical recognition in viologen‐based ditopic structures

Responsive Materials, EarlyView.
The so‐called “blue box” is one of the most studied macrocycles. Yet, functionalized macrocycles of this type are rarely investigated. This work describes the radical‐radical recognition properties of ditopic structures, including functionalized blue‐box macrocycles.
Ahmad Bachir, Fabiana Ciocchetti, Caterina Baccini, Sayed Suliman Shah, Andrea Secchi, Cristian Pezzato, Giulio Ragazzon   +6 more
wiley   +1 more source

Outstanding intraindividual genetic diversity in fissiparous planarians (Dugesia, Platyhelminthes) with facultative sex

BMC Evolutionary Biology, 2019
Background Predicted genetic consequences of asexuality include high intraindividual genetic diversity (i.e., the Meselson effect) and accumulation of deleterious mutations (i.e., Muller’s Ratchet), among others.
Laia Leria, Miquel Vila-Farré, Eduard Solà, Marta Riutort   +3 more
doaj   +1 more source

Molecular Active Matter, Kinetic Asymmetry, and Non‐Reciprocal Interactions

Small, EarlyView.
Nanoscale enzymes constitute dissipative active matter that converts scalar energy input into vectorial outputs. Through kinetic and diffusion asymmetry, they break time and space symmetry, resulting in directional motion. This mechanism accounts for both positive and negative chemotaxis, as well as non‐reciprocal interactions between enzymes that ...
Niladri Sekhar Mandal, Xiaotian Lu, Ayusman Sen, R. Dean Astumian   +3 more
wiley   +1 more source

Study on Thermal Ratchet Effect of Nuclear Double Walled Vessel and Its Supporting Structure Based on Nonlinear Method

Yuanzineng kexue jishu
The nuclear double walled vessel is a common structural form of high temperature reactor body, which assumes the dual safety functions of primary pressure boundary and primary coolant "defense in depth" containment.
LIU Yanan1, MO Yafei1, GAO Fuhai1, LI Xiaoxuan2
doaj   +1 more source