Results 61 to 70 of about 9,266 (198)

W-exchange and W-annihilation processes of B mesons

, 1997
Using the PQCD method we calculate the W-exchange and the W-annihilation processes of B mesons, which in general involve a charm quark or anti-quark in the final state. The nonvanishing amplitudes of these processes are found to be suppressed by a factor
Baur, Buchalla, Carlson, Carlson, Carlson, Chang, Chau, Cheng, Da-Xin Zhang, Dongsheng Du, Du, Gourdin, Greiner, Hitlin, Li-bo Guo, Lü, Simma, Szczepaniak, Ward, Ward, Xing   +20 more
core   +1 more source

Pan‐European Fragile Populations Cohort for COVID‐19: What Worked, What Didn't, and Lessons Learned

Transplant Infectious Disease, Volume 28, Issue 2, March/April 2026.
ABSTRACT The COVID‐19 pandemic exposed the vulnerability of immunocompromised hosts and the scarcity of evidence guiding their management. Within the European Horizon 2020 ORCHESTRA project, a multinational consortium connected existing and new cohorts to harmonize data, laboratory methods, and clinical expertise across fragile populations. The fragile
Beatrice Tazza, Cecilia Bonazzetti, Natascia Caroccia, Michela Di Chiara, Lorenzo Maria Canziani, Anna Maria Azzini, Zaira R. Palacios‐Baena, Paula Olivares‐Navarro, Jesús Rodríguez‐Baño, Evelina Tacconelli, Pierluigi Viale, Maddalena Giannella   +11 more
wiley   +1 more source

Highly Sensitive Detection of Phenylbutazone with Metallic Particle-Based Electrochemical Sensors

Chemosensors
Nonsteroidal anti-inflammatory drugs such as phenylbutazone (PBZ) are among the most widely used medications globally due to their effectiveness in relieving pain and reducing inflammation.
Ana-Raluca Măghinici, Andreea-Loredana Comănescu, Andrei-Daniel Geman, Constantin Apetrei   +3 more
doaj   +1 more source

Effect of plant growth regulators in the rooting of Pinus cuttings

Brazilian Archives of Biology and Technology, 2006
This work evaluated the rooting of Pinus caribaea var. hondurensis Morelet cuttings under the action of different levels of plant growth regulators. The cuttings consisted of 4-6 cm long shoots of P. caribaea var.
Andréia Henrique, Eduardo Nogueira Campinhos, Elizabeth Orika Ono, Sheila Zambello de Pinho   +3 more
doaj   +1 more source

Designing Thermally Compatible Template‐Coating Pairs Toward Dimensionally Stable 3D Porous Carbons with Tunable Density

Advanced Functional Materials, Volume 36, Issue 16, 23 February 2026.
3D porous carbons with tunable density are crucial for energy storage, separations, and load‐bearing applications; however, their fabrication is often constrained by shrinkage during pyrolysis. This study optimizes and demonstrates the versatility of a template–coating pair strategy, producing materials that largely retain their shape and hierarchical ...
Adarsh Suresh, Manuela Campos, Kendrick Xie, Elektra Makris, Jonah Lovejoy, Maya El Shamsy, Chong Liu, Stuart J Rowan   +7 more
wiley   +1 more source

Plastics Recycling: A Comparative Study of Different Analytical Techniques

Macromolecular Materials and Engineering, Volume 311, Issue 1, January 2026.
13C solid‐state NMR can be used to determine different polyolefins in a mixture. ABSTRACT Plastic waste has become a critical challenge threatening our environment and survival. There has been a growing demand for recycling methods to process waste into clean virgin‐like material.
Md. Lutful Amin, Le N. M. Dinh, Aditya Rawal, Per B. Zetterlund, Vipul Agarwal   +4 more
wiley   +1 more source

Almacenamiento en frío de los bulbos y uso de paclobutrazol para producir tulipán en macetas Bulb cold storage and use of paclobutrazol for pot tulip production

Agriscientia, 2007
Se compararon los efectos del paclobutrazol (PBZ) y del tiempo de almacenamiento en frío de los bulbos (TA) sobre características comerciales de tulipán Tulipa gesneriana L. (Leen van der Mark) en maceta.
N. Francescangeli, A. Zagabria
doaj  

Paclobutrazol as a plant growth regulator

Chemical and Biological Technologies in Agriculture, 2021
Plant growth regulators are chemical substances which govern all the factors of development and growth within plants. The application of plant growth regulators to crops modifies hormonal balance and growth leading to increased yield, enhanced crop ...
Bizuayehu Desta, Getachew Amare
doaj   +1 more source

Fast‐Locking Frequency‐Hopping PLL Using Dual‐Edge Low‐Duty‐Cycle PFD With Cycle Slip Suppression

IET Circuits, Devices &Systems, Volume 2026, Issue 1, 2026.
The performance of conventional phase–frequency detectors (PFDs) is critically limited by dead‐zone and blind‐zone artifacts, which stem from the timing constraints of D flip‐flop (DFF) based architectures. These non‐idealities degrade phase‐detection resolution, induce cycle slip, and prolong the lock time of phase‐locked loops (PLLs).
Afifeh Ghaemnia, Jincheng Yang, Xiaojiong Fei, Guoqiang Zhang, Paolo Marconcini   +4 more
wiley   +1 more source

The optimization of crop response to climatic stress through modulation of plant stress response mechanisms. Opportunities for biostimulants and plant hormones to meet climate challenges.

New Phytologist, Volume 249, Issue 1, Page 130-151, January 2026.
Summary This review discusses the use of agronomic management practices to enhance crop stress resilience to climate stress through the modulation of natural plant growth regulatory pathways. The use of biostimulants or plant hormones to improve crop resilience is subject to strict regulatory oversight if changes in the regulation of plant growth are ...
Jing Li, Giulia Forghieri, Danny Geelen, Patrick du Jardin, Patrick H. Brown   +4 more
wiley   +1 more source