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•An overview of luminescent phosphine Au(I) alkynyl complexes is herein described.•Some applications are included showing their great potential in different fields.•Their ...photophysical properties are of great importance.•Heavy atom effect induces can favor phosphorescence emission.•Intermolecular interactions are relevant for several applications.
An overview of the homometallic phosphine-Au(I)alkynyl complexes reported in the literature from 2010 to 2018 have been collected and reported in this review article. They have been classified for better understanding, between mononuclear and polynuclear compounds. Their luminescent properties have been discussed along the text and the specific absorption and emission data collected in Annex I.
This type of compounds are being used for a wide range of applications in fields such as biomedicine, chemosensors or luminescent materials among others and their interest is increasing in the last years. Some particular examples have been also selected herein.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
This paper examines the relationship between maternal exposure to violence during pregnancy and newborn birthweight. The identification strategy exploits variation in the timing of exposure and in ...the geographic location of expectant mothers across Colombian municipalities. Exposure to violence in early pregnancy had a large negative impact on birthweight, primarily for boys, and the effect was mitigated by their mothers' education. Girls' birthweight was affected mainly by shocks in later stages of gestation. Furthermore, their mothers were more likely to engage in potentially harmful behaviors during the pregnancy. This evidence exposes the importance of parental responses in shaping the effect of exposure to violence on newborn health.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
3.
A window into prebiotic worlds? Rodriguez, Laura E
Science (American Association for the Advancement of Science),
2023-Feb-10, 2023-02-10, 20230210, Volume:
379, Issue:
6632
Journal Article
Peer reviewed
Zircon s reveal the geochemistry of Earth's earliest hydrothermal systems.
Massive phytoplankton proliferation, and the consequent release of toxic metabolites, can be responsible for seafood poisoning outbreaks: filter-feeding mollusks, such as shellfish, mussels, oysters ...or clams, can accumulate these toxins throughout the food chain and present a threat for consumers' health. Particular environmental and climatic conditions favor this natural phenomenon, called harmful algal blooms (HABs); the phytoplankton species mostly involved in these toxic events are dinoflagellates or diatoms belonging to the genera
,
,
, and
. Substantial economic losses ensue after HABs occurrence: the sectors mainly affected include commercial fisheries, tourism, recreational activities, and public health monitoring and management. A wide range of symptoms, from digestive to nervous, are associated to human intoxication by biotoxins, characterizing different and specific syndromes, called paralytic shellfish poisoning, amnesic shellfish poisoning, diarrhetic shellfish poisoning, and neurotoxic shellfish poisoning. This review provides a complete and updated survey of phycotoxins usually found in marine invertebrate organisms and their relevant properties, gathering information about the origin, the species where they were found, as well as their mechanism of action and main effects on humans.
Four Pt(II)(N^N^N) compounds featuring DMSO coordination at the fourth position were synthesized. Ligands varied in terms of pyridyl central ring (hydrogen/chlorine substituent) and lateral rings ...(triazoles with CF3 substitution or tetrazoles). Coordination to pyridine yielded tetra-nitrogen coordinated Pt(II) complexes or Pt-functionalized polymers using commercial 4-pyridyl polyvinyl (PV) or dimethylaminopyridine. Luminescence behaviors exhibited remarkable environmental dependence. While some of the molecular compounds (tetrazole derivatives) in solid state displayed quenched luminescence, all the polymers exhibited 3MMLCT emission around 600 nm. Conversely, monomer emission was evident on poly(methyl methacrylate) or polystyrene matrices. DFT calculations were used to analyze the aggregation of the complexes both at the molecular level and coordinated to the PV polymer and their influence on the HOMO–LUMO gaps.
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IJS, KILJ, NUK, PNG, UL, UM
Although the predatory and competitive impacts of biological invasions are well documented, facilitation of native species by non-indigenous species is frequently overlooked. A search through recent ...ecological literature found that facilitative interactions between invasive and native species occur in a wide range of habitats, can have cascading effects across trophic levels, can re-structure communities, and can lead to evolutionary changes. These are critical findings that, until now, have been mostly absent from analyses of ecological impacts of biological invasions. Here I present evidence for several mechanisms that exemplify how exotic species can facilitate native species. These mechanisms include habitat modification, trophic subsidy, pollination, competitive release, and predatory release. Habitat modification is the most frequently documented mechanism, reflecting the drastic changes generated by the invasion of functionally novel habitat engineers. Further, I predict that facilitative impacts on native species will be most likely when invasive species provide a limiting resource, increase habitat complexity, functionally replace a native species, or ameliorate predation or competition. Finally, three types of facilitation (novel, substitutive, and indirect) define why exotic species can lead to facilitation of native species. It is evident that understanding biological invasions at the community and ecosystem levels will be more accurate if we integrate facilitative interactions into future ecological research. Since facilitative impacts of biological invasions can occur with native endangered species, and can have wide-ranging impacts, these results also have important implications for management, eradication, and restoration.PUBLICATION ABSTRACT
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Latin American migration to Australia spans over five decades. Despite growing Latin American diasporas in Australia, little is known in public imaginaries about the difficult histories, desires and ...struggles that have shaped those who fled their countries due to conflict and dictatorships. This article draws from fifteen in-depth interviews with Spanish-speaking migrants from post-conflict and dictatorial Latin America living in Australia. Engaging with decolonial knowledge and scholarship in Latin American memory studies, the article argues for desire-centred memory work in which trauma, damage and deficit narratives are decentred. Through theorising with ambiguity and participants' voices, I reveal the potential of taking seriously everyday memories of joy, care, and desire to unsettle and nuance normative understandings of difficult histories, including Latin American migration to Australia. In doing so, I also emphasise the importance of engaging with people as epistemic subjects who are doing the difficult memory work by choosing how, when, and where to narrate and share their stories. Ultimately, this article contributes to decolonial, feminist and Southern epistemologies and understandings of memory in the wake of violence that are desire-based (Tuck, E., 2009. Suspending Damage: A Letter to Communities. Harvard Educational Review, 79 (3), 409-427) and transformative.
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BFBNIB, NUK, PILJ, SAZU, UL, UM, UPUK
Linked to extractive practices, territorial dispossession can be traced back to the colonisation of Abya Yala. From a decolonial commitment, this article complicates notions of dispossession and ...extractivism as merely emerging from war in Colombia and focuses on their presence in Campesinas territories. Based on the conceptualisations of the coloniality of power and coloniality of gender, I narrate how territorial dispossession and extractivism are felt in women’s ‘body-lands’ through foreign tourism/conservation development and new export crops in two rural veredas in the Colombian Andes and in the Sierra Nevada de Santa Marta where I conducted participatory visual projects in 2016. From a relational understanding of place, I also demonstrate the ways that the rural population is resisting and negotiating within these processes. Ultimately, I make a call for feminist scholars to politically commit to the dismantling of the coloniality of gender, and to the resistances to territorial dispossession and extractivism (epistemic and economic) that rural women are leading in place in the Global South.
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NUK, OILJ, SAZU, UKNU, UL, UM, UPUK
•Several designs of hybrid systems are analysed in different locations of Spain.•An innovative electricity consumption profile for dwellings is presented.•The relevance of the cogeneration engine ...working hours is emphasised.•Primary energy consumption, emissions and Life Cycle Costs are calculated.•All the case studies are compared in order to determine the most optimal solutions.
The aim of this paper is to assess the performance of several designs of hybrid systems composed of solar thermal collectors, photovoltaic panels and natural gas internal combustion engines. The software TRNSYS 17 has been used to perform all the calculations and data processing, as well as an optimisation of the tank volumes through an add-in coupled with the GENOPT® software. The study is carried out by analysing the behaviour of the designed systems and the conventional case in five different locations of Spain with diverse climatic characteristics, evaluating the same building in all cases. Regulators, manufacturers and energy service engineers are the most interested in these results.
Two major contributions in this paper are the calculations of primary energy consumption and emissions and the inclusion of a Life Cycle Cost analysis. A table which shows the order of preference regarding those criteria for each considered case study is also included. This was fulfilled in the interest of comparing between the different configurations and climatic zones so as to obtain conclusions on each of them. The study also illustrates a sensibility analysis regarding energy prices. Finally, the exhaustive literature review, the novel electricity consumption profile of the building and the illustration of the influence of the cogeneration engine working hours are also valuable outputs of this paper, developed in order to address the knowledge gap and the ongoing challenges in the field of distributed generation.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
This article contributes to conceptualisations of the countryside as an embodied space through a reflective engagement with the use of participatory methods with the campesinas (peasant women) of the ...Sierra Nevada de Santa Marta mountain range in Colombia. The key aim of the article is to explore how the embodied everyday experiences of the field and the methodologies associated to these are marked by place. To do so, I focus on two empirical aspects of my research. Firstly, I examine how engaging with place is pivotal to understanding the countryside as a relational and embodied space. Secondly, I demonstrate how the participatory methods I engaged with can provide place‐based insights to understanding the rural as embodied. Overall, this article contributes to the literature on how researchers perform and enact rural research, while aiming to de(s)colonise knowledge production.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
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