Results 31 to 40 of about 103,207 (299)

Chemical safety problems

Conservation Science in Cultural Heritage, 2012
A situation of chemical safety is reached when the effects of organic, inorganic and organometallic toxic substances enable people to maintain good health and to preserve the biodiversity of ecosystems.
Valery S. Petrosyan
doaj   +1 more source

Habitat fragmentation and anthropogenic factors affect wildcat Felis silvestris silvestris occupancy and detectability on Mt Etna [PDF]

, 2019
Knowledge of patterns of occupancy is crucial for planning sound biological management and for identifying areas which require paramount conservation attention.
Anile S., Devillard S., Lo Valvo M., Mattucci F., Ragni B., Rovero F.   +5 more
core   +1 more source

Effects of Normobaric Hypoxia on Oculomotor Dynamics of Aviator Students during a Simulated Flight Task [PDF]

, 2020
Hypoxia occurs when the body\u27s tissues are unable to obtain adequate oxygen supply and is the primary environmental factor present when pilots are exposed to increasing altitude levels.
Blackley, Anna, de Moors, Moroni, Deshner, Austin, Ehrlich, Kaela, Engberg, Josh, Hornsby, Jared, Hu, Theodore, Jankovic, Maja, McCarty, Abby, Morrison, Mitchell, Rider, Carl Wesley, Walsh, Brian   +11 more
core   +1 more source

Inspiratory muscle training and its effect on indices of physiological and perceived stress during incremental walking exercise in normobaric hypoxia [PDF]

, 2014
This study evaluated the effects of inspiratory muscle training (IMT) on inspiratory muscle fatigue (IMF) and physiological and perceptual responses during trekking-specific exercise. An 8-week IMT program was completed by 21 males (age 32.4 ± 9.61 years,
Bartesaghi, M, Celegato, Barbara, Giardini, G, Lanfranchi, Gerolamo, Laveder, Paolo, Malacrida, S, Millino, Caterina, Pacchioni, Beniamina, Pratali, L   +8 more
core   +1 more source

Circulating Apoptotic Signals During Acute and Chronic Exposure to High Altitude in Kyrgyz Population

Frontiers in Physiology, 2019
Background: Circulating apoptotic signals (CASs) have been described in the pathologies associated with dysregulated apoptosis, such as cancer, heart diseases, and pulmonary hypertension (PH).
Djuro Kosanovic, Djuro Kosanovic, Simon Maximilian Platzek, Aleksandar Petrovic, Akylbek Sydykov, Abdirashit Maripov, Argen Mamazhakypov, Meerim Sartmyrzaeva, Kubatbek Muratali Uulu, Meerim Cholponbaeva, Aidana Toktosunova, Nazgul Omurzakova, Melis Duishobaev, Christina Vroom, Oleg Pak, Norbert Weissmann, Hossein Ardeschir Ghofrani, Akpay Sarybaev, Ralph Theo Schermuly   +18 more
doaj   +1 more source

Recent Observations of Human-induced Asymmetric Effects on Climate in Very High-Altitude Area

PLoS ONE, 2014
Like urban heat islands (UHI), human-induced land degradation (HLD) is a phenomenon attributed to human activities, but this phenomenon occurs in non-urban areas. Although a large body of work has demonstrated that land-cover change influences local climate systems, little work has been done on separating the impact of HLD from naturally-occurring ...
Heli Lu, Guifang Liu
openaire   +4 more sources

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Why do UV levels vary? [PDF]

, 1997
Have you ever suffered the excrutiating pain and discomfort of a severe sunburn followed by the unsightly peeling of the skin? Have you ever wondered why you may receive a sunburn even on a partially cloudy day?
Kimlin, Michael G., Parisi, Alfio
core  

Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)

Advanced Science, EarlyView.
Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır, Yuan Fang, Consuelo Contreras, Andrew K. Schulz, Florian Hartmann   +4 more
wiley   +1 more source

Transcriptomic analysis of iPSC-derived endothelium reveals adaptations to high altitude hypoxia in energy metabolism and inflammation.

PLoS Genetics
Tibetan adaptation to high-altitude hypoxia remains a classic example of Darwinian selection in humans. Amongst Tibetan populations, alleles in the EPAS1 gene - whose protein product, HIF-2α, is a central regulator of the hypoxia response - have ...
Olivia A Gray, David B Witonsky, Jordan Jousma, Débora R Sobreira, Alexander Van Alstyne, Ru-Ting Huang, Yun Fang, Anna Di Rienzo   +7 more
doaj   +1 more source