Results: 99

Tree species composition, growing stock and biomass carbon dynamics of the major timber species in Hindu Kush regions of Pakistan

Braz. j. biol; 84 (), 2024
Using inventory data, this study evaluates the species composition, growing stock volume (GSV), and biomass carbon (BMC) of the five major timber species in the sub-tropical, and temperate/sub-alpine regions of Pakistan. It was found that the stem density varies between 50 and 221 trees ha -1, with a mea...

Stoichioproteomics study of differentially expressed proteins and pathways in head and neck cancer

Braz. j. biol; 83 (), 2023
Abstract Hypoxia is a prominent feature of head and neck cancer. However, the oxygen element characteristics of proteins and how they adapt to hypoxia microenvironments of head and neck cancer are still unknown. Human genome sequences and proteins expressed data of head and neck cancer were retrieved fro...

Payment for ecosystem services (PES): a holistic tool for sustainable forest management-a case study from Pakistan

Braz. j. biol; 83 (), 2023
Abstract Economic valuation of ecosystem services is a new concept in forest management. Economic valuation provides basis for payment for ecosystem services (PES). Therefore, objective of this study was to evaluate eco-tourism and carbon stock services of the Maindam valley, District Swat, Pakistan. For...

A pandemia de COVID-19 e o seu impacto à saúde planetária

A pandemia de COVID-19 deu ao mundo uma imagem clara do que é uma crise multidimensional em escala planetária, revelando o papel central que ocupa o setor de saúde e as profundas desigualdades no acesso aos cuidados em saúde que existem entre os diferentes países, e dentro de cada um deles. Melhorar...

Catalysis at gold-ligand interfaces: a frustrated Lewis pair mechanism for selective reduction reaction

The interaction of the organic ligands with metal nanoparticle has a very important role for applications in catalysis, as well as other processes involving ligands that can activate or poison the surface of metal nanoparticles. Very little has been studied so far on the role of organic ligands used eith...

Organic matter compartments in an Ultisol under integrated agricultural and livestock production systems in the Cerrado

Ciênc. rural (Online); 52 (10), 2022
Integrated agricultural production systems have the potential to increase organic matter content, which is reflected in the soil carbon (C) and nitrogen (N) concentrations. Here, we evaluated the C and N stocks and its compartments in a typical distro cohesive yellow Ultisol under the no-till (NT) and cr...

El compostaje de cáscara de Musa paradisiaca L. para la producción de biogás y biometano como estrategia de preservación de la salud ambiental

A medida que a se avanza en el siglo XXI, los sistemas de energía deben alejarse de los combustibles fósiles y aumentar la capacidad de las energías renovables si se quieren cumplir los objetivos de temperaturas máximas del Acuerdo de París. Sin embargo, debido a los desafíos en la adopción de tec...

Media development and process parameter optimization using statistical experimental designs for the production of nonribosomal peptides in Escherichia coli

BACKGROUND: Nonribosomal peptide synthases (NRPS) can synthesize functionally diverse bioactive peptides by incorporating nonproteinogenic amino acids, offering a rich source of new drug leads. The bacterium Escherichia coli is a well-characterized production host and a promising candidate for the synthe...

Daños de salud respiratoria en comunas expuestas a centrales termoeléctricas a carbón en el norte de Chile: análisis de datos secundarios

INTRODUCCIÓN: En Chile, el funcionamiento de las Centrales Termoeléctricas de Carbón (CTEC) representan un problema de salud pública debido a las consecuencias sanitarias que tienen en la población. Se han notificado daños en el sistema respiratorio. Materiales y MÉTODOS: Se realizó un estudio ec...

Reduced Distance Matrix to Verify the Similarity between Protein Structures

Abstract This paper focuses on developing a reduced distance matrix to improve the computational performance during the protein interactions clustering. This proposed matrix considers as centroids two alpha carbon atoms from a protein structure and stores the distances between these centroids and the oth...