Results 11 to 20 of about 40,099 (146)

Amphibian loss alters periphyton structure and invertebrate growth in montane streams. [PDF]

J Anim Ecol, 2022
This paper demonstrates that amphibian loss increases periphyton biomass, causes shifts in algal assemblages and reduces invertebrate growth. It highlights the importance of protecting amphibians in order to maintain normal stream ecosystem functioning, especially in nonforested streams where periphyton in the main energy resource.
Alonso A, Monroy S, Bosch J, Pérez J, Boyero L.   +4 more
europepmc   +2 more sources

Interaction of Layered Silicates with Biomembranes: Ion Exchangers and Non‐Exchangers

Advanced Materials Interfaces, Volume 9, Issue 29, October 13, 2022., 2022
Layered silicates (LS) induce cell membrane damage which is the result of the combined contribution of particle surface hydroxyl species, that is, aluminols and silanols, and cation exchange capacity. This work offers a new rationale to explain the interfacial phenomena of LS for biomaterial design and nanofabrication.
Stefania Cananà, Cristina Pavan, Chiara Bellomo, Guillermo Escolano‐Casado, Giuseppe Chilla, Dominique Lison, Lorenzo Mino, Francesco Turci   +7 more
wiley   +1 more source

Reactions of Schiff Base‐Substituted Diselenides and ‐tellurides with Ni(II), Pd(II) and Pt(II) Phosphine Complexes

European Journal of Inorganic Chemistry, Volume 2020, Issue 45, Page 4303-4312, December 7, 2020., 2020
Stable nickel(II), palladium(II) and platinum(II) complexes with selenolato‐ or tellurolato‐substituted Schiff bases are obtained from reactions of the corresponding dichalcogenides with PPh3‐containing metal(II) starting materials. Released phosphine ligands act as selective reducing agents for metal‐coordinated dichalcogenides during such reactions ...
Maximilian Roca Jungfer, Ernesto Schulz Lang, Ulrich Abram   +2 more
wiley   +1 more source

Cyanobacterial biodiversity from different freshwater ponds of Thanjavur, Tamilnadu (India) [PDF]

, 2007
Cyanobacterial biodiversity from different freshwater ponds of Thanjavur, Tamilnadu (India). Studies on the cyanobacterial biodiversity of 5 different freshwater ponds in and around Thanjavur, Tamilnadu during summer month (June, 2004) has been made and ...
Muralitharan, Gangatharan, Muthukumar, Chinnasamy, Panneerselvam, Annamalai, Thajuddin, Nooruddin, Vijayakumar, Ramasamy   +4 more
core   +3 more sources

RETIRADA DO SUPLEMENTO MICROMINERAL-VITAMÍNICO, REDUÇÃO DE FÓSFORO INORGÂNICO E ADIÇÃO DE FITASE EM RAÇÕES DE SUÍNOS NA FASE DE TERMINAÇÃO

Ciência Animal Brasileira, 2008
Para avaliar o efeito da retirada do suplemento micromineral-vitamínico associada à redução dos níveis de fósforo inorgânico e adição de fitase em rações, sobre o desempenho e as características de carcaça de suínos na fase de terminação, realizou-se um ...
Suelson Pereira dos Santos, Romão da Cunha Nunes, Eurípedes Laurindo Lopes, Márcia Nunes Bandeira Roner, José Henrique Stringhini, Ana Paula Ázara de Oliveira, Luciana Moura Rufino   +6 more
doaj   +1 more source

La adquisición de un equipo de alto desempeño como alternativa en la estrategia de crecimiento inorgánico

Ciencias Administrativas, 2017
En el presente artículo se analiza la adquisición de un equipo de alto desempeño (EAD) como una nueva alternativa de crecimiento inorgánico. El trabajo consiste en una reflexión teórica que se identifica a partir de una situación real de negocio ocurrida
Juan Miguel Ruiz de Villalba Flórez, Mariano Gentilin, Camilo Franco Ruiz   +2 more
doaj   +1 more source

Rhenium(V) Complexes with Selenolato‐ and Tellurolato‐Substituted Schiff Bases – Released PPh3 as a Facile Reductant

European Journal of Inorganic Chemistry, Volume 2019, Issue 47, Page 4974-4984, December 19, 2019., 2019
Stable rhenium(V) complexes with selenolato‐ or tellurolato‐substituted Schiff bases are obtained from reactions of the corresponding dichalcogenides with PPh3‐containing rhenium(V) starting materials. The released phosphine ligands act as selective reducing agents for the dichalcogenides during such reactions.
Maximilian Roca Jungfer, Adelheid Hagenbach, Ernesto Schulz Lang, Ulrich Abram   +3 more
wiley   +1 more source

Study of the Equilibrium, Kinetics, and Thermodynamics of Boron Removal from Waters with Commercial Magnesium Oxide

International Journal of Chemical Engineering, Volume 2018, Issue 1, 2018., 2018
In the present work, the equilibrium, thermodynamics, and kinetics of boron removal from aqueous solutions by the adsorption on commercial magnesium oxide powder were studied in a batch reactor. The adsorption efficiency of boron removal increases with temperature from 25°C to 50°C.
Javier Paul Montalvo Andia, Lidia Yokoyama, Luiz Alberto Cesar Teixeira, Gianluca Di Profio   +3 more
wiley   +1 more source

Determinación de carbono orgánico en materias primas cerámicas en presencia de siderita, FeCO3 [PDF]

, 2013
La materia orgánica es una de las impurezas presentes en las materias primas utilizadas en la fabricación de pavimentos y revestimientos cerámicos. Durante el proceso de cocción, el carbono orgánico (Corgánico) puede producir la aparición de un núcleo ...
Gazulla Barreda, María Fernanda, Gómez, Carmen M., Orduña, Mónica, Rodrigo Carbonell, María Dolores   +3 more
core   +2 more sources

Synthesis, Characterization, Cytotoxic Activity, and Interactions with CT‐DNA and BSA of Cationic Ruthenium(II) Complexes Containing Dppm and Quinoline Carboxylates

Bioinorganic Chemistry and Applications, Volume 2017, Issue 1, 2017., 2017
The complexes cis‐[Ru(quin)(dppm)2]PF6 and cis‐[Ru(kynu)(dppm)2]PF6 (quin = quinaldate; kynu = kynurenate; dppm = bis(diphenylphosphino)methane) were prepared and characterized by elemental analysis, electronic, FTIR, 1H, and 31P{ 1H} NMR spectroscopies.
Edinaldo N. da Silva, Paulo A. B. da Silva, Angélica E. Graminha, Pollyanna F. de Oliveira, Jaqueline L. Damasceno, Denise C. Tavares, Alzir A. Batista, Gustavo Von Poelhsitz, Claudio Pettinari   +8 more
wiley   +1 more source