Results 141 to 150 of about 350,286 (305)

Resolving the biome debate: ecological and palaeo‐data concur that the extensive tree‐limited grassy biomes of central and north‐western Madagascar are largely anthropogenic

Biological Reviews, EarlyView.
ABSTRACT For millennia, human activities have transformed ecosystems globally. Determining which landscapes are predominantly anthropogenic is crucial to conservation and habitat restoration. Madagascar, a critically‐threatened biodiversity hotspot, is a prominent example.
Grant S. Joseph, Sean Hixon, Colleen L. Seymour, Laurie R. Godfrey, Miguel Pedrono, Karen E. Samonds, Andrinajoro R. Rakotoarivelo, Brooke E. Crowley   +7 more
wiley   +1 more source

Arterial oxygen saturation and hemoglobin mass in postmenopausal untrained and trained altitude residents

, 2007
Because of lacking ventilatory stimulation by sex hormones in postmenopausal women (PW), one might expect a lowered arterial oxygen saturation (S(O(2))) in hypoxia and therefore a stronger erythropoietic reaction than in young women (YW). Nine untrained (
Robinson, Yohan,, Reyes, Orlando, Mora, María Mercedes, Serrato, Mauricio, Böning, Dieter, Rojas, Joel Alberto, Cristancho, Edgar   +6 more
core   +1 more source

Do High Temperatures Affect Firm Demography? Evidence From Italy

Business Strategy and the Environment, EarlyView.
ABSTRACT This study analyses the impact of high temperatures and heat stress on Italian firm demography during 2009–2022. Combining provincial‐firm‐level data with a high‐resolution multidecadal meteorological dataset, we investigate whether high temperatures—absolute and anomalous—affect firm entry and exit rates.
Concetta Carnevale, Danilo Drago, Francesco Trivieri, Francesco De Simone   +3 more
wiley   +1 more source

Altitude-dependent and -independent variations in Plasmodium falciparum prevalence in northeastern Tanzania.

, 2005
BACKGROUND: Effective malaria control requires information about intensity of transmission across large areas and populations. Estimates based on entomological factors lack precision and are not cost-effective to obtain.
Drakeley, Chris J, Riley, Eleanor M, Cox, Jonathan, Theander, Thor G, Lemnge, Martha M, Nkya, Watoky MMM, Lusingu, John P A, Nkya, Watoky M M M, Malima, Robert, Carneiro, Ilona, Reyburn, Hugh, Lusingu, John PA   +11 more
core   +1 more source

Beyond the Classroom at Dallas College: Documenting a Framework for Student Parents’ College Success

New Directions for Community Colleges, EarlyView.
ABSTRACT Student parents make up a substantial share of community college enrollment, yet the support that exists is often dispersed across offices. In this article, we review and summarize research on the importance of student services for community college student parents.
Xiaodan Hu, Sayeeda Jamilah, Frank Fernandez   +2 more
wiley   +1 more source

Impact of Drone Versus Car Transport on Anti‐Doping Sample Integrity Over Short Distances: A Proof‐Of‐Concept Study

Drug Testing and Analysis, EarlyView.
This proof‐of‐concept study evaluated the impact of short‐distance drone transport on anti‐doping sample integrity compared with traditional car transport. Targeted assays and untargeted metabolomics revealed equivalent biological profiles between methods, confirming that drone delivery preserves sample integrity for the athlete biological passport ...
I. Al‐Mohannadi, M. Y. Al‐Jaber, M. Al‐Nesf, W. Samsam, Abdulaziz Farooq, N. M. Thomas, M. Stuart, N. Robinson, G. Zangenfeind, D. Rovira, N. Mohamed‐Ali, A. Beotra, V. Mohamed‐Ali, M. Al‐Maadheed   +13 more
wiley   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

Deep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou, Xueqiu He, Zhenlei Li, Ping Wang, Dazhao Song, Fuxing Jiang, Shan Yin, Anliang Lü, Menghan Wei, Taoping Zhong   +9 more
wiley   +1 more source

Energy evolution‐based damage quantification and failure prediction of fault zone tunnel lining concrete: A novel acoustic emission–strain energy coupling approach

Deep Underground Science and Engineering, EarlyView.
This study investigates the damage evolution and failure mechanisms of tunnel lining concrete in active fault zones through uniaxial compression tests integrated with acoustic emission (AE) monitoring. A strong linear correlation is identified between the AE cumulative absolute energy and the total strain energy, providing a reliable energy‐based ...
Shuaida Zhu, Dongming Zhang, Mingliang Zhou, Shengjun Duo, Hongwei Huang   +4 more
wiley   +1 more source