Results 81 to 90 of about 1,089,131 (337)

The effect of photobleaching on bee (Hymenoptera: Apoidea) setae color and its implications for studying aging and behavior [PDF]

open access: yes, 2014
Historically, bee age has been estimated using measurements of wing wear and integument color change.  These measurements have been useful in studies of foraging ecology and plant-pollinator interactions.
Klinger, Ellen   +3 more
core   +3 more sources

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan   +4 more
wiley   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

open access: yesAdvanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong   +16 more
wiley   +1 more source

Sociodemographic and Psychological Correlates of Sun Protection Behaviors among Outdoor Workers: A Review

open access: yesJournal of Skin Cancer, 2013
Outdoor workers are at a higher risk for developing skin cancer due to their increased sun exposure. The primary objective of this review was to synthesize the current research literature that addresses sociodemographic and psychological factors related ...
Vinayak K. Nahar   +4 more
doaj   +1 more source

Age and sun exposure-related widespread genomic blocks of hypomethylation in nonmalignant skin [PDF]

open access: yes, 2015
BACKGROUND: Aging and sun exposure are the leading causes of skin cancer. It has been shown that epigenetic changes, such as DNA methylation, are well established mechanisms for cancer, and also have emerging roles in aging and common disease.
Amy R Vandiver   +10 more
core   +1 more source

Risk perception of sun exposure and knowledge of vitamin D among the healthcare providers in a high-risk country: A cross-sectional study [PDF]

open access: green, 2022
Mahbubul H. Siddiqee   +8 more
openalex   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song   +4 more
wiley   +1 more source

Promoting Skin Cancer Awareness [PDF]

open access: yes, 2017
Skin cancer is the most common cancer in the nation and the cost to treat it is around 8 billion dollars a year. Sun exposure is linked to all three types of skin cancer and incidence of melanoma is highest in Caucasians compared to other races.
Kolli, Sree Sahithi
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Choctaw Nation Youth Sun Exposure Survey

open access: yesPreventive Medicine Reports, 2017
The incidence of skin cancer is rising among American Indians (AI) but the prevalence of harmful ultraviolet light (UVL) exposures among AI youth is unknown.
Dorothy A. Rhoades   +8 more
doaj   +1 more source

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