Results 1 to 10 of about 28,570 (227)
Lixiviación ácida de concentrados de scheelita
Revista de Metalurgia, 2005 Se estudió la lixiviación acida, en medio clorhídrico, de un concentrado de wolframio (scheelita, CaWO4). De lo anterior, se obtuvo un sólido insoluble (H2WO4), que se trató con una solución alcalina de hidróxido de sodio, lográndose la completa ...
P. Navarro, C. Vargas, F. J. Alguacil
doaj +4 more sources
Revista Brasileira De Zootecnia, 2000 RESUMO - Os efeitos de diferentes níveis de concentrado sobre o comportamento ingestivo foram estudados com cinco bezerros holandeses, inteiros, com idade e peso corporal médios iniciais de 10,8±0,8 meses e 233,4±26,1 kg PV.
JOSÉ CARLOS Pereira +2 more
exaly +2 more sources
Revista Brasileira De Zootecnia, 2001 O efeito de cinco níveis de concentrado na dieta foi avaliado sobre o conteúdo do trato gastrintestinal e o peso dos órgãos internos e dos compartimentos gastrintestinais de bovinos Nelore não-castrados.
Antonia Sherlânea Chaves Veras +2 more
exaly +2 more sources
Revista Brasileira De Zootecnia, 2000 Realizou-se um experimento com o objetivo de avaliar os efeitos de níveis de concentrado nas rações sobre o consumo e as digestibilidades aparentes totais e parciais de matéria seca (MS), matéria orgânica (MO), proteína bruta (PB), extrato etéreo (EE ...
Sebastiao De Campos Valadares Filho +2 more
exaly +2 more sources
Dynamic returns to scale and geography in U.S. banking
Papers in Regional Science, Volume 102, Issue 1, Page 53-85, February 2023., 2023 Abstract We observe spatial cost dependence among medium‐sized and large U.S. banks (1998Q1–2020Q4). We contribute to the literature by accounting for this using an accessible dynamic spatial econometric cost model. For a movement along a bank's output expansion path, we calculate the cost returns that spillover to/from the bank. The noticeable impacts
Anthony J. Glass, Karligash Kenjegalieva
wiley +1 more source
Journal of Applied Ecology, Volume 59, Issue 5, Page 1362-1371, May 2022., 2022 Whereas previous work investigates how the amount of chemical diversity in a plant population influences insect ecology, our results indicate that local spatial distribution of diversity is equally important. A key implication of this work is the potential to design cultivar mixtures spatially, at the movement scale of target organisms, to create more ...
Kayleigh C. Hauri +4 more
wiley +1 more source
Inter‐country differences in the cultural ecosystem services provided by cockles
People and Nature, Volume 4, Issue 1, Page 71-87, February 2022., 2022 Abstract Coastal systems provide many cultural ecosystem services (CES) to humans. Fewer studies have focused solely on CES, while those comparing CES across countries are even rarer. In the case of shellfish, considerable ecosystem services focus has been placed on nutrient remediation, with relatively little on the cultural services provided, despite
Mathilde Jackson‐Bué +21 more
wiley +1 more source
Urban sprawl into Natura 2000 network over Europe
Conservation Biology, Volume 35, Issue 4, Page 1063-1072, August 2021., 2021 Abstract Urban growth is a major threat to biodiversity conservation at the global scale. Its impacts are expected to be especially detrimental when it sprawls into the landscape and reaches sites of high conservation value due to the species and ecosystems they host, such as protected areas. I analyzed the degree of urbanization (i.e., urban cover and
Elena D. Concepción
wiley +1 more source
Mapa estratégico para uma indústria do setor lácteo [doi: 10.5329/RECADM.2013001]
Revista Eletrônica de Ciência Administrativa, 2013 Este estudo objetivou desenvolver, a partir das perspectivas tradicionais do Balanced Scorecard e da do meio ambiente, um mapa estratégico para uma indústria do setor lácteo. Desenvolveu-se uma pesquisa descritiva com estudo de caso e coleta de dados por
Silvana Anita Walter +2 more
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Trends in seabird breeding populations across the Great Barrier Reef
Conservation Biology, Volume 35, Issue 3, Page 846-858, June 2021., 2021 Abstract The Great Barrier Reef is an iconic ecosystem, known globally for its rich marine biodiversity that includes many thousands of tropical breeding seabirds. Despite indications of localized declines in some seabird species from as early as the mid‐1990s, trends in seabird populations across the reef have never been quantified.
Bradley K. Woodworth +5 more
wiley +1 more source