Results 131 to 140 of about 163,557 (294)

Genetic characterization of Tibetan pigs adapted to high altitude under natural selection based on a large whole-genome dataset

Scientific Reports
The Qinghai-Tibet Plateau is a valuable genetic resource pool, and the high-altitude adaptation of Tibetan pigs is a classic example of the adaptive evolution of domestic animals. Here, we report the presence of Darwinian positive selection signatures in
Lingyun Zhang, Yanbin Zhu, Yue Ren, Linna Xu, Xuanbo Liu, Xuebin Qi, Ting Jiao, Guangming Sun, Haiyu Han, Jian Zhang, Fengbo Sun, Yanan Yang, Shengguo Zhao   +12 more
doaj   +1 more source

Hybrid Simulation–Machine Learning Surrogates for Coordinate‐Based Solar and Wind Energy Yield Assessment in Iraq: A Streamlit Decision‐Support Tool

Energy Science &Engineering, EarlyView.
This study integrates climatic simulations with machine learning to predict solar and wind energy across Iraq. Results show Random Forest excels for solar (R2 = 0.98) and neural networks for wind (R2 = 0.97), enabling a practical web tool for renewable energy planning. ABSTRACT Driven by the global shift away from fossil fuels, solar and wind resources
Bassam Musheer Kareem, Abdolsalam Ebrahimpour, Jafar Ghafouri, Roghayyeh Motallebzadeh   +3 more
wiley   +1 more source

Barriers to adaptation to sea-level rise [PDF]

, 2013
Increasingly there is recognition from researchers and policy makers that there are legal, institutional and cultural barriers to climate change adaptation that will need to be addressed if we are able to adapt efficiently and equitably.
Elissa Waters, Jon Barnett, Sam Pendergast   +2 more
core  

Physiological Adaptation Buffers Personality‐Linked Psychopathology Under High‐Altitude Hypoxia

Brain and Behavior
Purpose High‐altitude hypoxia imposes persistent physiological stress that may influence psychological health. While personality traits such as neuroticism are known predictors of psychological symptom burden, little is known about whether physiological ...
Yuan Li, Niannian Wang, Zhibin Geng, Wenjie Liu, Hailin Ma, Hao Li   +5 more
doaj   +1 more source

Optimization of Ultrasound‐Assisted Extraction of Seabuckthorn (Hippophae salicifolia) Seed Oil With the Use of Response Surface Methodology

Future Postharvest and Food, EarlyView.
Ultrasound‐assisted extraction (UAE) of seabuckthorn seed oil enhanced yield (17.95%), antioxidant activity (IC50: 5.25 μg/mL), and carotenoid content (266.63 mg/100 g). The oil, rich in unsaturated fatty acids (83.15%), exhibited superior quality, thermal stability, and potential applications in food, cosmetics, and pharmaceuticals, making UAE a ...
Mrityunjoy Das, Baikuntha Jyoti Gogoi, Ajitabh Bora, D. V. Kamboj, N. L. Raju   +4 more
wiley   +1 more source

Creation of a Landslide Susceptibility Map Using Short‐Term Data From the July 2018 Heavy Rainfall in Southern Hiroshima Prefecture

Geological Journal, EarlyView.
This work advances landslide susceptibility mapping by incorporating short‐term trigger data with landscape susceptibility mapping. We also examine the importance of downsampling, watershed delineation and geospatial correlations in evaluating outcomes.
Kanta Kotsugi, Ting Liu, Toshiro Hata, Rebecca Muenich   +3 more
wiley   +1 more source

Hemoglobin affinity in Andean rodents

Biological Research, 2002
Blood hemoglobin oxygen affinity (P50) was measured in three Andean species and in the laboratory rat (control), all raised near sea level. Chinchilla lanigera (Molina, 1792) has an altitudinal habitat range from low Andean slopes up to 3000 m., while ...
HRVOJ OSTOJIC, VERONICA CIFUENTES, CARLOS MONGE   +2 more
doaj  

Independent leaf and root responses to autumn freezing in perennial herbs: Insights from cutting and transplant manipulations

Grassland Research, EarlyView.
In this study, we compared two sampling approaches to assess autumn freezing resistance. Our goal was to determine whether the commonly employed cutting method, which disrupts root‐tissue connectivity, provides a valid measure of true freezing resistance.
Zhengjie Yan, Cheng Chen, Xin Jing, Shuai Ren, Junpeng Rui, Tao Wang, Jin‐Sheng He   +6 more
wiley   +1 more source

Development and External Validation of an Efficient Deep Learning Model for Lesion Segmentation and Subtyping of Hepatic Echinococcosis in Ultrasound Imaging

Health Care Science, EarlyView.
We developed a lightweight deep learning framework that integrates frequency‐ and spatial‐domain ultrasound features with segmentation‐assisted classification for hepatic echinococcosis diagnosis. The model outperformed existing state‐of‐the‐art methods in both accuracy and inference speed while requiring substantially fewer computational resources ...
Zhu He, Jiajun Qiu, Chenlin Du, Jin Yin, Xuhui Zhang, Yelei Ren, Yifei Wang, Lamu Suolang, Chunyang Li, Zongjiu Zhang, Diming Cai, Qicheng Lao   +11 more
wiley   +1 more source

Adaptation of aeronautical engines to high altitude flying

, 1923
Issues and techniques relative to the adaptation of aircraft engines to high altitude flight are discussed. Covered here are the limits of engine output, modifications and characteristics of high altitude engines, the influence of air density on the ...
Kutzbach, K
core   +1 more source