13 research outputs found
Potencial antimicrobiano de extratos de plantas na inibição de leveduras do gĂȘnero Candida
The increase in the resistance to antimicrobial drugs in use has attracted the attention of the scientific community, and medicinal plants have been extensively studied as alternative agents for the prevention of infections. The Candida genus yeast can become an opportunistic pathogen causing disease in immunosuppressive hosts. The purpose of this study was to evaluate dichloromethane and methanol extracts from Mentha piperita, Rosmarinus officinalis, Arrabidaea chica, Tabebuia avellanedae, Punica granatum and Syzygium cumini against Candida species through the analysis of Minimum Inhibitory Concentration (MIC). Results presented activity of these extracts against Candida species, especially the methanol extract.Devido ao aumento da resistĂȘncia aos antimicrobianos em uso, as plantas medicinais tĂȘm sido intensamente estudadas como agentes alternativos para a prevenção de doenças e infecçÔes. A levedura do gĂȘnero Candida, por ser um patĂłgeno oportunista, tem sua virulĂȘncia aumentada ao adquirir resistĂȘncia aos antifĂșngicos, desencadeando doenças, principalmente em hospedeiros imunossuprimidos. O propĂłsito deste trabalho foi avaliar os extratos diclorometano e metanol das plantas Mentha piperita, Rosmarinus officinalis, Arrabidaea chica, Tabebuia avellanedae, Punica granatum e Syzygium cumini contra linhagens do gĂȘnero Candida atravĂ©s dos testes de Concentração InibitĂłria MĂnima (CIM). Os resultados demonstraram atividade dos extratos sobre as espĂ©cies de Candida, particularmente o extrato metanol.10651068Fundação de Amparo Ă Pesquisa do Estado de SĂŁo Paulo (FAPESP
The sudden change phenomenon of quantum discord
Even if the parameters determining a system's state are varied smoothly, the
behavior of quantum correlations alike to quantum discord, and of its classical
counterparts, can be very peculiar, with the appearance of non-analyticities in
its rate of change. Here we review this sudden change phenomenon (SCP)
discussing some important points related to it: Its uncovering,
interpretations, and experimental verifications, its use in the context of the
emergence of the pointer basis in a quantum measurement process, its appearance
and universality under Markovian and non-Markovian dynamics, its theoretical
and experimental investigation in some other physical scenarios, and the
related phenomenon of double sudden change of trace distance discord. Several
open questions are identified, and we envisage that in answering them we will
gain significant further insight about the relation between the SCP and the
symmetry-geometric aspects of the quantum state space.Comment: Lectures on General Quantum Correlations and their Applications, F.
F. Fanchini, D. O. Soares Pinto, and G. Adesso (Eds.), Springer (2017), pp
309-33
Antimicrobial potential of some plant extracts against Candida species
The increase in the resistance to antimicrobial drugs in use has attracted the attention of the scientific community, and medicinal plants have been extensively studied as alternative agents for the prevention of infections. The Candida genus yeast can become an opportunistic pathogen causing disease in immunosuppressive hosts. The purpose of this study was to evaluate dichloromethane and methanol extracts from Mentha piperita, Rosmarinus officinalis, Arrabidaea chica, Tabebuia avellanedae, Punica granatum and Syzygium cumini against Candida species through the analysis of Minimum Inhibitory Concentration (MIC). Results presented activity of these extracts against Candida species, especially the methanol extract