Climate change is becoming an increasingly significant issue in Africa, and the need for climate resilience assessment has intensified. Dar es Salam is one of Africa's emerging megacities. With a population of ove...
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The aim of this paper was to report on factors contributing to the deterioration of the mental health of Indigenous populations(IP)in *** factors seem to have a direct impact on the mental health of IP in Brazil:(1)Th...
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The aim of this paper was to report on factors contributing to the deterioration of the mental health of Indigenous populations(IP)in *** factors seem to have a direct impact on the mental health of IP in Brazil:(1)The absence of public policies;(2)Intellectual production;(3)Psychiatric medical care for remote areas(e.g.,telemedicine)aimed at promoting the mental health of Brazil’s IP,which causes a huge gap in the process of assistance and social,psychological,economic and cultural valorization of native peoples;(4)The dissemination of fake news,which exposed,above all,older IP to risk behaviors in the pandemic,such as refusal of vaccination;and(5)The violence carried out on IP lands due to economic interests with mining/agribusiness.
Nano-emulsions are alternatives for incorporation of essential oils in food-products. Despite generation of surfactant-free nano-emulsions is well known (e.g., Ouzo effect) its stabilization is a critical issue. This ...
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Nano-emulsions are alternatives for incorporation of essential oils in food-products. Despite generation of surfactant-free nano-emulsions is well known (e.g., Ouzo effect) its stabilization is a critical issue. This study shows the behavior of surfactant-free nano-emulsions prepared with two lemongrass essential oils based in dynamic light scattering analysis through exposure to a linear ramp of temperature. The gas-chromatography coupled to mass-spectrometry analysis revealed that β-myrcene was found in the Cymbopogon citratus and absent in C. flexuosus. C. citratus nano-emulsion prepared with deionized water (CCNE-DW) presented initial lower size diameter (208.6 ± 1.9 nm) than C. flexuosus nano-emulsion (245.2 ± 3.1 nm) prepared with deionized water (CFNE-DW), probably due to the presence of β-myrcene capable of avoiding a rapid droplet growth before onset of dynamic light scattering measurements. In silico physicochemical properties suggest that β-myrcene could considered decisive for low size of C. citratus nano-emulsions, since reduction of its concentration may induce destabilization of C. citratus diluted nano-emulsions. Similar initial droplet size was observed for C. citratus nano-emulsion (221.0 ± 1.3 nm) prepared with infusion (CCNE-IN) and C. flexuosus nano-emulsion (215.7 ± 1.7 nm) prepared with infusion (CFNE-IN). The highest droplet reduction was observed for CFNE-DW (DR25–80ºC = 45.9 %;p<0.0001). Distinct phytochemical profile evidenced by 1H NMR, since C. citratus infusion shows an envelope of signals with more overlapped peaks between the chemical shifts at δH 3.5 – 4.0 ppm, may favored solubilization of droplet components by the infusion and responsible by droplet growth of diluted nano-emulsions, in addition to decrease of β-myrcene content. Our results show the feasibility of preparation of surfactant-free nano-emulsions from two lemongrass and contribute to better knowledge related to influence of chemical prof
Background: The Food and Agriculture Organization has reported approximately 40 % of food loss due to damage from plant pests and diseases, including fungal infections. Continuous application of agrichemicals for cont...
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This study evaluates the presence of bacterial and protozoan agents in ticks and fleas found on wild animals in the state of Rio de Janeiro, Brazil. These ectoparasites were collected on mammal species Hydrochoerus hy...
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Background: Aloysia gratissima (Verbenaceae), popularly known as bee-brush or whitebrush, has been widely used in Brazilian folk medicine as analgesic, expectorant and antimicrobial. Phytochemical studies have identif...
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The negative effects of climate change have burdened humanity with the necessity of decarbonization by moving to clean and renewable sources of energy generation. While energy demand varies across the sectors, fisheri...
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Disasters are notoriously unpredictable;they can strike anytime, anywhere. However, in this Anthropocene Epoch, humanity has increased the likelihood of many disasters, as well as their likely severity and socio-ecolo...
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Disasters are notoriously unpredictable; they can strike anytime, anywhere. However, in this Anthropocene Epoch, humanity has increased the likelihood of many disasters, as well as their likely severity and socio-ecol...
Disasters are notoriously unpredictable; they can strike anytime, anywhere. However, in this Anthropocene Epoch, humanity has increased the likelihood of many disasters, as well as their likely severity and socio-ecological impacts, with implications for the future of natural resources; in particular, marine ecosystems and biodiversity, and the human communities who rely on them. This case study focussed on the Banggai cardinalfish (Pterapogon kauderni), a unique species of global conservation concern, and its native habitat in the Banggai Archipelago, at the centre of the Coral Triangle (CT) global marine biodiversity hotspot. To evaluate future risks and implications, we looked back to the past, including an overview of what is known regarding the origins and evolution of this species and its habitat, as well as past natural disasters in the Banggai Archipelago, Central Sulawesi, Indonesia. We then reviewed current status and trends affecting the likelihood of exposure and the vulnerability of endemic P. kauderni populations and habitat, overall and at the evolutionary significant unit (ESU) scale, to disasters caused by tectonic phenomena, disasters related to weather and anthropogenic climate change (e.g. mass coral bleaching, sea level rise), and the synergies between disaster impacts and localised human activities. Finally, we considered management options with potential for mitigating disaster risk and increasing resilience, with benefits for both biodiversity and human welfare, as well as avenues for future research. We conclude that local action can buy time, but it is likely that the eventual fate of this 'flagship' species, as well as the human communities of this equatorial archipelago, depend on effective global action to curb the drivers of anthropogenic climate change.
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