Results 41 to 50 of about 227,470 (164)

Costos de producciòn de pasto mejorado en las Fincas el Trébol, La Esperanza y Chepi, en el Departamento de Matagalpa durante el año 2008 [PDF]

open access: yes, 2009
El proceso productivo de los pastos consiste en aquellas actividades que se realizan a partir de que el pasto empieza a producir y quedarán fijas a realizarse años tras año, entre ellas están riego, control de maleza, fertilización, rondas, mantenimiento
Cruz Zeledon, Alba Esther   +1 more
core  

A Renal Clearable Probe for In Vivo Monoamine Oxidase (MAO) Detection

open access: yesAdvanced Science, Volume 13, Issue 23, 23 April 2026.
A renal‐clearable Cy7‐based fluorogenic probe enables rapid and non‐invasive detection of monoamine oxidase (MAO) activity in vivo. Upon MAO‐mediated activation, the fluorescent product is efficiently excreted in urine, allowing direct quantification of enzyme overexpression.
Marcia Domínguez   +13 more
wiley   +1 more source

Phenolic Derivatives from the Leaves of (Bignoniaceae)

open access: yesNatural Product Communications, 2011
A new phenolic derivative, 4-methoxyphenol 1- O -β-D-apiofuranosyl-(1→6)- O -β-D-glucopyranoside ( 1 ), has been identified together with uncommon 3,4-dimethoxyphenol 1- O -β-D-apiofuranosyl-(1→6)- O -β-D-glucopyranoside ( 2 ) and 3-hydroxy, 4 ...
Carolina Arevalo   +4 more
doaj   +1 more source

Multi‐Metallic Organic Framework‐Based Composites as Electrocatalysts

open access: yesSmall, Volume 22, Issue 19, 1 April 2026.
Multi‐metallic organic framework (MMOF) composites and their derivatives offer a versatile platform for electrocatalysis by coupling abundant active sites with improved conductivity and stability. This review summarizes recent advances in MMOF‐based heterostructures with metal, carbon, and multi‐partner components, highlighting synergistic interactions
Mohammad Mazraeh   +3 more
wiley   +1 more source

Microanalitzadors mediambientals [PDF]

open access: yes, 2007
Investigadors del Grup de Sensors i Biosensors de la Universitat Autònoma de Barcelona han desenvolupat una nova metodologia general de fabricació de sistemes d'anàlisi química miniaturitzats i l'han aplicada al disseny de microanalitzadors ...
Alonso, Julián
core   +1 more source

A Project Portfolio Management model adapted to non-profit organizations [PDF]

open access: yes, 2016
As they strive towards greater professionalism in carrying out their activities, non-profit organizations (NPOs) have begun paying attention to project management.
de Freitas, Henrique M R   +2 more
core   +3 more sources

Bacterial Cyclodipeptides Target Signal Pathways Involved in Malignant Melanoma

open access: yesFrontiers in Oncology, 2020
Melanoma is an aggressive cancer that utilizes multiple signaling pathways, including those that involve oncogenes, proto-oncogenes, and tumor suppressors. It has been suggested that melanoma formation requires cross-talk of the PI3K/Akt/mTOR and Ras-ERK
Mayra Xóchitl Durán-Maldonado   +9 more
doaj   +1 more source

Mechanochemical Fullerene Nanoencapsulation in Amino‐Functionalized ZIF‐12 for Visible‐Light Disinfection of Waterborne Viruses and Bacteria

open access: yesSmall, Volume 22, Issue 23, 22 April 2026.
A solvent‐minimized mechanochemical strategy enables the synthesis of C₆₀‐encapsulated amino‐functionalized ZIF‐12 as a visible‐light‐driven bifunctional photocatalyst. Synergistic charge separation enhances hydroxyl radical generation, achieving efficient viral in saline water and bacterial inactivation in river water under environmentally relevant ...
Noelia Rodríguez‐Sánchez   +7 more
wiley   +1 more source

Efecto de cihalofop-butilo para el control de malezas gramíneas anuales en arroz de temporal.

open access: yesAgronomía Mesoamericana, 2004
Con objeto de evaluar la efectividad del herbicida cihalofop-butilo en el control de malezas gramíneas anuales en el arroz de temporal cv Milagro Filipino, durante 2002, se condujeron dos experimentos en el municipio de Tres Valles, Ver., México.
Valentín Alberto Esqueda-Esquivel   +1 more
doaj   +1 more source

Report of the Scientific Committee of the Spanish Agency for Food Safety and Nutrition (AESAN) on nutritional risks for women during menopause, perimenopause and postmenopause

open access: yesFood Risk Assess Europe, Volume 4, Issue 2, April 2026.
Abstract Menopause is the time when a woman transitions from the reproductive stage of life to the non‐reproductive state. It is characterised by significant hormonal changes, which can affect a woman's physical, emotional, mental and social well‐being.
Irene Bretón Lesmes   +7 more
wiley   +1 more source

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