Results 11 to 20 of about 158 (99)

Sharp focusing of a light field with polarization and phase singularities of an arbitrary order [PDF]

Компьютерная оптика, 2019
Using the Richards-Wolf formalism, we obtain general expressions for all components of the electric and magnetic strength vectors near the sharp focus of an optical vortex with the topological charge m and nth-order azimuthal polarization.
Victor Kotlyar, Sergey Stafeev, Alexey Kovalev   +2 more
doaj   +1 more source

Experimental investigation of the energy backflow in the tight focal spot

Компьютерная оптика, 2020
Using two identical microobjectives with a numerical aperture NA = 0.95, we experimentally demonstrate that the on-axis intensity near the tight focal spot of an optical vortex with a topological charge 2 is zero for right-handed circular polarization ...
V.V. Kotlyar, S.S. Stafeev, A.G. Nalimov , A.A. Kovalev , A.P. Porfirev   +4 more
doaj   +1 more source

The Non-Vortex Inverse Propagation of Energy in a Tightly Focused High-Order Cylindrical Vector Beam

IEEE Photonics Journal, 2019
In this paper, the tight focusing of high-order cylindrical vector beams (beams with polarization singularity) was investigated. Using the Richards–Wolf formalism, there were obtained expressions for all projections of the electric and magnetic ...
Sergey S. Stafeev, Victor V. Kotlyar, Anton G. Nalimov, Elena S. Kozlova   +3 more
doaj   +1 more source

Silencing of juvenile hormone‐related genes through RNA interference leads to molt failure and high mortality in the spongy moth

Insect Science, EarlyView.
The feasibility of using RNA interference to control the globally important quarantine pest, the spongy moth. Targeting genes related to JHs play an important role in the growth and development of insects. First, the open reading frames (ORFs) of Ldjhamt and Ldjheh were identified and characterized, and the target genes were cloned and double‐stranded ...
Wenzhuai Ji, Qing Xie, Xiaoxiao Chang, Juan Shi   +3 more
wiley   +1 more source

Experiences and Views of African Australian Consumers on the Role of Spirituality, Religion and Culture on Mental Health

International Journal of Mental Health Nursing, Volume 35, Issue 4, August 2026.
ABSTRACT This study explored the lived experiences of African Australian consumers and their perspectives on the role of spirituality, religion and culture in shaping mental health and engagement with mental health services. A qualitative phenomenological design informed by transcultural nursing perspectives was used.
Bekithemba Sibanda, Bindu. Joseph, Michael Olasoji   +2 more
wiley   +1 more source

Outcome and cost‐effectiveness of transdiagnostic cognitive behavioral therapy compared with management as usual for youth with common mental health problems: Long‐term results from the Mind‐My‐Mind randomized trial

Journal of Child Psychology and Psychiatry, Volume 67, Issue 8, Page 1307-1320, August 2026.
Background Credible long‐term outcomes from randomized trials evaluating the effectiveness and cost‐effectiveness of preventive programs for mental health problems are needed. We compared long‐term effects of the Mind My Mind (MMM) transdiagnostic cognitive behavioral therapy (CBT) program to management as usual (MAU). Methods The study was a pragmatic,
Ditte Vassard, Martin Køster Rimvall, Rasmus Trap Wolf, Robin Christensen, Sabrina M. Nielsen, Kerstin Jessica Plessen, Frank Verhulst, Niels Bilenberg, Per Hove Thomsen, Mikael Thastum, Simon‐Peter Neumer, Anne Katrine Pagsberg, Wendy K. Silverman, Christoph U. Correll, Pia Jeppesen   +14 more
wiley   +1 more source

Enantioselective Separation and Negative Transport of Chiral Particles via Optical Needle Fields

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
This work proposes an all‐optical strategy that leverages a tailored optical needle field for the enantioselective separation and 3D manipulation of chiral particles. By introducing phase modulation, we engineer a dual‐needle configuration capable of spatially separating and negatively transporting both enantiomers within a single system, offering a ...
Manman Li, Xu Chen, Shaohui Yan, Qiang Zhang, Wenyu Gao, Yuan Zhou, Xiaohao Xu, Baoli Yao   +7 more
wiley   +1 more source

Beyond CO2: Incorporating Bicarbonate, Dynamic Carbon Speciation, and Stoichiometric Plasticity Into Algal Growth Models

Biotechnology and Bioengineering, Volume 123, Issue 6, Page 1491-1502, June 2026.
ABSTRACT The design of biological carbon capture systems to uptake carbon dioxide by photoautotrophic cultivation of algae has been proposed to mitigate atmospheric carbon emissions. Multiple models to predict algal growth as a function of nutrients have been proposed, but few have delved into the complex dynamic reactions of algal growth as influenced
Elizabeth Flanagan, Caye Drapcho, Mary Katherine Watson   +2 more
wiley   +1 more source

Nature‐Based Solutions for Climate Adaptation: Review of Barriers to Adoption and Guidelines for Policymakers

Environmental Policy and Governance, Volume 36, Issue 3, Page 422-443, June 2026.
ABSTRACT Nature‐based solutions (NBS) for climate adaptation encompass a range of approaches that work with nature to increase resilience to climate change while providing ecological, economic and social co‐benefits. These solutions have frequently been put forward for application in urban contexts, such as the creation of urban forests, but can ...
Anita Vollmer, Stefano Ceolotto, Niall Farrell   +2 more
wiley   +1 more source

Polarization Möbius strip at the tight focus of a generalized Poincaré beam

Компьютерная оптика
Based on the Richards-Wolf formalism, we investigate tight focusing of a generalized Poincaré beam. Analytical expressions are derived for all components of the electric field strength vector in the focal plane.
V.V. Kotlyar, A.A. Kovalev, A.M. Telegin
doaj   +1 more source