Results 41 to 50 of about 1,099,824 (306)

Programmable DNA‐Peptide Hybrid Nanostructures for Potent Neutralization of Multiple Influenza a Virus Subtypes

open access: yesAdvanced Functional Materials, EarlyView.
A multivalent antiviral platform based on honeycomb‐shaped DNA nanostructures (HC–Urumin) is developed to enhance the potency and breadth of the host defense peptide Urumin. Through spatially patterned trimeric presentation, HC–Urumin disrupts influenza A virus entry, improves cell viability, and reduces disease severity in vivo‐offering a modular and ...
Saurabh Umrao   +11 more
wiley   +1 more source

Seasonal changes and determination of heavy metal concentrations in Veshaw river of the Indian western Himalaya

open access: yesFrontiers in Environmental Chemistry, 2022
Trace elements are a major pollutant in the river water and these pollutants are present in all components of the ecological system. Since time immemorial, the River Veshaw has been one of the important sources of water and has shaped the cultural and ...
Rauoof Ahmad Rather   +10 more
doaj   +1 more source

Multiple Twinning in Nacre and Aragonite

open access: yesAdvanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt   +7 more
wiley   +1 more source

The Year of the Honey Bee (Apis mellifera L.) with Respect to Its Physiology and Immunity: A Search for Biochemical Markers of Longevity

open access: yesInsects, 2019
It has been known for many years that in temperate climates the European honey bee, Apis mellifera, exists in the form of two distinct populations within the year, short-living summer bees and long-living winter bees.
Martin Kunc   +8 more
doaj   +1 more source

Leaf-Associated Epiphytic Fungi of Gingko biloba, Pinus bungeana and Sabina chinensis Exhibit Delicate Seasonal Variations

open access: yesJournal of Fungi, 2022
Plant-leaf surface on Earth harbors complex microbial communities that influence plant productivity and health. To gain a detailed understanding of the assembly and key drivers of leaf microbial communities, especially for leaf-associated fungi, we ...
Lijun Bao   +7 more
doaj   +1 more source

A possible effect of atmospheric circulation in the daily variation of the earth's magnetic field [PDF]

open access: yes, 1963
The daily variation of the horizontal intensity of the earth's magnetic field at Honolulu exhibits seasonal features that are not related in a simple way to solar declination.
Wulf, Oliver Reynolds
core   +1 more source

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

open access: yesAdvanced Functional Materials, EarlyView.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras   +6 more
wiley   +1 more source

Zooplankton Fauna (Rotifera, Cladocera, Copepoda) of Süloğlu Dam Lake (Edirne) and its Seasonal Changes

open access: yesTrakya University Journal of Natural Sciences, 2015
This study was carried out between March 2013 and February 2014 in order to determine the zooplankton composition and density in Süloğlu Dam Lake. Zooplankton samples were collected at 4 stations in the lake using a plankton net with a mesh size of 55 µm
Hüseyin Güher, Şehnaz Çolak
doaj  

Morphophysiological aspects of ornamental sunflowers cultivated in different growing seasons under semi-arid conditions

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2022
Knowledge of how climatic conditions affect plant morphophysiology is essential for understanding how to manage the growth cycles of different crops.
Sheila D. P. da Silva   +5 more
doaj   +1 more source

Seasonal Characteristics of Mesospheric Plasma and Their Transitions [PDF]

open access: yes, 1984
The main seasonal features of the middle atmosphere are arising from the different dynamical basic states in winter and summer. The development of the two controversial circulation systems and the also different peculiarities of transition between them ...
Lauter, E. A.
core   +1 more source

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