Results 101 to 110 of about 198,315 (312)

Preliminary Magnetic Mineralogical Studies of the Neopleistocene-Holocene Sediments from Lake Turgoyak

Учёные записки Казанского университета: Серия Естественные науки
This article reports on some preliminary findings of a study on the seismoacoustic profiling of the basin of Lake Turgoyak (Southern Urals) and the magnetic properties of its bottom sediments.
L. R. Kosareva, N. G. Nurgalieva, D. K. Nurgaliev, H.-C. Li, P. S. Krylov, D. M. Kuzina, V. V. Antonenko   +6 more
doaj   +1 more source

Distribution of selected trace metals in southern Lake Michigan and lower Green Bay [PDF]

, 1974
This report considers the distribution of selected trace metals in water, suspended matter and sediments of southern Lake Michigan and in surficial sediments of lower Green Bay.
Leland, Harry V., Shimp, Neil F.
core  

Mid-Miocene cooling and the extinction of tundra in continental Antarctica [PDF]

, 2008
A major obstacle in understanding the evolution of Cenozoic climate has been the lack of well dated terrestrial evidence from high-latitude, glaciated regions.
Ashworth, A.C., Hedenas, L., Hemming, S.R., Johnson, J.V., Leng, Melanie, Lewis, A.R., Machlus, M.L., Marchant, D.R., Newton, A.E., Raine, I., Willenbring, J.K., Williams, M., Wolfe, A.P.   +12 more
core   +1 more source

Microbial Contribution to Soiling and Its Impact on Photovoltaic Module Soiling in Arid Zones of the Atacama Desert

Advanced Sustainable Systems, EarlyView.
Microorganisms colonizing photovoltaic surfaces in the Atacama desert form biofilms that enhance particle adhesion and reduce energy yield. This study identifies UV‐resistant bacteria and carotenoid‐producing strains that interfere with PV performance.
Douglas Olivares, Ricardo Ortíz, Luis Rojas‐Araya, María Teresa Mata, Felipe Galleguillos, Jaime Llanos, Carlos Portillo, Valentina Escobar, Aitor Marzo   +8 more
wiley   +1 more source

Evidence of late Quaternary environmental change in a continental east Antarctic lake from lacustrine sedimentary pigment distributions [PDF]

, 2005
A sediment core from Progress Lake, one of the oldest lacustrine sequences in East Antarctica, contains distinct zones dating from a previous interglacial (most likely Marine Isotope Stage 5e, c.
Hodgson, D A, Keely, B J, Squier, A H
core   +2 more sources

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

Geochemical response of a closed-lake basin to 20th century recurring droughts/wet intervals in the subtropical Pampean Plains of South America

Journal of Limnology, 2004
Laguna Mar Chiquita is a highly variable closed saline lake located in the Pampean Plains of central Argentina. Presently is the largest saline lake in South America (∼ 6,000 km2) and also one of the largest in the world.
Daniel ARIZTEGUI, Barbara P. MAZZILLI, Sandra R. DAMATTO, Sonia M.B. OLIVEIRA, Deborah I.T. FÁVARO, Favio E. LARIZZATTI, Eduardo L. PIOVANO   +6 more
doaj   +1 more source

Limnological, Ichthyological, and Parasitological Investigations on Arkansas Reservoris in Relation to Water Quality [PDF]

, 1974
Lake Fort Smith, a 525 acre (212 ha) reservoir, was impounded in 1936 as a water supply for the city of Fort Smith. The reservoir is located on Clear Creek (Frog Bayou), a tributary of the Arkansas River, in the Boston Mountains 28 miles (45 km ...
Becker, David A., Carter, John S., Cloutman, Donald G., Hoffman, Carl E., Kilambi, Raj V., Olmsted, Larry L.   +5 more
core   +2 more sources

Early diagenetic vivianite [Fe-3(PO4)(2) center dot 8H(2)O] in a contaminated freshwater sediment and insights into zinc uptake: a mu-EXAFS, mu-XANES and Raman study [PDF]

, 2008
The sediments in the Salford Quays, a heavily-modified urban water body, contain high levels of organic matter, Fe, Zn and nutrients as a result of past contaminant inputs.
Andrew J. Bennett, Ankley, Bartl, Binsted, Brown, Bryant, Calas, Carignan, Dodd, Emerson, Fagel, Fejdi, Frost, Frost, Gonsiorczyk, Hamilton-Taylor, Hamilton-Taylor, House, Hupfer, Jensen, Karen A. Hudson-Edwards, Kevin G. Taylor, Lee, Mori, Morse, Nriagu, Nriagu, Parkman, Parkman, Piriou, Pirrie, Rehr, Ross, Sarret, Schwertmann, Taylor, Taylor, Trivedi, Ueshima, Vladimir Vishnyakov, Wildner   +40 more
core   +1 more source

WDR5‐H3K4me3 Epigenetic Axis Promotes TRMT6‐Dependent tRNA M1A Modification to Facilitate Triple‐Negative Breast Cancer Progression by Suppressing Ferroptosis

Advanced Science, EarlyView.
Upregulated TRMT6 forms aberrant hypermethylation of a specific tRNA pool and serves as a predictor of poor prognosis in TNBC. This m1A modification in tRNAs enhances translation of FTH1 and FTL, reducing the pool of bioavailable Fe2⁺. Reduced Fe2+ availability impairs RSL3‐induced lipid peroxidation and tumor progression.
Yuqing Lei, Xue Wang, Jiahe Liu, Zixu Niu, Jiaqi Hua, Qian Guo, Dan Du, Yuanchang Zhu, Fucheng He, Mingxia Zhou, Hongle Li, Jing He, Jun Li   +12 more
wiley   +1 more source