Results 21 to 30 of about 68 (68)

Prueba cutánea con extractos alergénicos de pólenes y relación con signos clínicos de rinitis alérgica y asma bronquial en Camagüey, Cuba

VacciMonitor, 2013
Los pólenes inciden sobre las mucosas provocando sensibilización alérgica, sin embargo, en Cuba son insuficientes los estudios sobre estos alergenos.
Olimpio Rodríguez, Rodolfo Célio, Feres Aboukhair, Alfredo Martín Laurrabaquio, Iván Oswaldo Tinoco, Héctor Ulises Cuevas, Miguel Ángel Cruz Suárez, Miguel Ángel Cruz Marmolejo, María del Carmen Reyes   +8 more
doaj  

Environmental changes on grass flowering phenological trends (2000–2021)

PLANTS, PEOPLE, PLANET, Volume 7, Issue 6, Page 1824-1833, November 2025.
Climate change is impacting the flowering of grasses, which in turn impacts the health of people due to allergic reactions triggered by grass pollen. The timing of flowering was studied for 15 grass species across various habitats in the Cordoba region of Spain.
Moisés Martínez‐Bracero, Carmen García‐Llamas, Rocío López‐Orozco, Jose Oteros, Purificación Alcázar, Carmen Galán   +5 more
wiley   +1 more source

Estudio inicial de captación e identificación de pólenes y hongos ambientales en Samborondón, Ecuador

Revista Alergia México
Objetivo: Identificar y registrar los aeroalérgenos más importantes captados en la estación de aerobiología en la ciudad de Samborondón, Ecuador. Métodos: Los conteos de granos de polen y esporas de hongos se realizaron según la técnica estandarizada,
Oscar Manuel Calderón LLosa, Denisse Cevallos Levicek , Germán Ramón, Laura Barrionuevo, Karla Robles, Ivan Tinoco, Iván Chérrez   +6 more
doaj   +1 more source

Elektronenspinresonanz an einzelnen Molekülen

Angewandte Chemie, Volume 137, Issue 37, September 8, 2025.
Dieser Minireview gibt einen Überblick über die vier Elektronenspinresonanz‐Techniken mit Einzelmolekül‐Empfindlichkeit, die entweder auf optisch detektierter Magnetresonanz oder Rastersondenmikroskopie basieren. Nach der Einführung der zugrunde liegenden gemeinsamen Konzepte wird ein Überblick über die jeweiligen Arbeitsprinzipien, experimentellen ...
Lisanne Sellies, Jascha Repp
wiley   +1 more source

Influence of sex‐organ positions on pollen transfer and self‐interference in plants with stylar polymorphisms: An experimental approach using three‐dimensional printed flowers

Functional Ecology, Volume 39, Issue 9, Page 2526-2538, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Heterostylous plants are defined by the reciprocal positioning of stigmas and anthers in floral morphs—a trait proposed by Darwin to enhance the efficiency of disassortative (intermorph) pollen transfer.
Victoria Ferrero, Luis Navarro, James D. Thomson, Spencer C. H. Barrett   +3 more
wiley   +1 more source

Prevalencia de sensibilización a aeroalérgenos en pacientes con rinitis alérgica en el sur de Bolivia

VacciMonitor, 2016
La rinitis alérgica es la enfermedad crónica más común, de elevado impacto sanitario y de importancia creciente en la mayor parte del mundo, los aeroalérgenos de ácaros, hongos y pólenes constituyen los desencadenantes más frecuentes de alergia ...
Eliot Iván Narváez-Gómez
doaj  

Distinct Intra‐ and Interspecific Foraging Patterns of Stingless Bee Species as a Conservation Tool

Biotropica, Volume 57, Issue 5, September 2025.
In this study, we examined the foraging patterns of three rescued stingless bee species in the Bolivian Yungas using melissopalynology and plant–pollinator network analysis. We found distinct floral foraging patterns both within and among three stingless bee species in the Bolivian Yungas, suggesting niche partitioning at multiple levels.
Sissi Lozada‐Gobilard, Pamela Cristina Santana, Yamil Maidana‐Tuco, Elvis Otmar Gutierrez, Teresa Ortuño   +4 more
wiley   +1 more source

Verbesserter Stofftransport und Ladungstransfer in COF‐basierten Photokatalysatoren mit dreidimensional geordneten Makroporen für die Benzylaminoxidation und Wasserstoffentwicklung

Angewandte Chemie, Volume 137, Issue 34, August 18, 2025.
Ein einstufiges, selbstopferndes Templating ermöglicht die Synthese von 3DOM‐COFs mit geordneten Makroporen. In Kombination mit ZnCdS katalysiert das daraus resultierende S‐Schema‐Heterojunktion effizient die Oxidation von Benzylamin und die H₂‐Entwicklung.
Lijuan Sun, Weicheng Yan, Weikang Wang, LeLe Wang, Silvio Osella, Guijie Liang, William A. Goddard III, Radek Zbořil, Yazhou Zhou, Juan Yang, Qinqin Liu   +10 more
wiley   +1 more source

Gene Flow and Vertical Stratification of Pollination in the Bat‐Pollinated Liana Marcgravia longifolia

Ecology and Evolution, Volume 15, Issue 8, August 2025.
This study investigates pollen dispersal, vertical stratification of gene flow, and spatial genetic structure in the bat‐pollinated liana Marcgravia longifolia in a western Amazonian forest. Flowers are produced from the forest floor to the canopy, allowing analysis of pollination across strata.
Malika Gottstein, Sarina Thiel, Jan Lukas Vornhagen, Christina Mengel, Marco Tschapka, Eckhard W. Heymann, Katrin Heer   +6 more
wiley   +1 more source

Formulation and evaluation of alternative to beeswax for vegan lipsticks

International Journal of Cosmetic Science, Volume 47, Issue 4, Page 626-638, August 2025.
Characterization of a cosmetic ingredient as a vegan alternative to beeswax. Investigation of binary oil–wax systems for cosmetic applications. Development of a predictive strategy for the formulation of vegan stick cosmetics. Abstract Honeybees' success is strictly linked to the chemical and application properties of their products: honey, beeswax (BW)
Manuela Loiacono, Luigi Padovano, Miryam Chiara Malacarne, Simone Conti, Enrico Caruso   +4 more
wiley   +1 more source