scholarly journals Status index of optimal water variables for biodiversity conservation in the Lagoon of Sonso in Colombia

Author(s):  
Gloria Yaneth Florez-Yepes ◽  
Alejandro Rincón ◽  
Vladimir Henao Céspedes ◽  
Juan Carlos Granobles Tores ◽  
Fredy Edimer Hoyos Velasco

In order to determine an index of the status of optimal water variables for biodiversity conservation in the Sonso Lagoon, the data obtained from 2004 to 2018 were used. To determine the index, a methodology based on a multivariate analysis of the physical-chemical water variables was used, as well as a correlation analysis for their delimitation. Subsequently, the definition of weights and the parameterization of the variables for the final construction of the index were made. As a result, it was found that the lagoon is in an adequate state with a value index of 0.65, with a highly vulnerable tendency to be in an acceptable state and go to a critical state, depending on the anthropic pressure it has. As a conclusion, it was obtained that variables such as dissolved oxygen, total phosphorus and electrical conductivity are determining factors in establishing the index.

2017 ◽  
Vol 68 (11) ◽  
pp. 2556-2559
Author(s):  
Mona Ionas ◽  
Sebastian Ioan Cernusca Mitariu ◽  
Adela Dancila ◽  
Tiberiu Horatiu Ionas ◽  
Raluca Monica Comaneanu ◽  
...  

By means of a specific anti-Streptococcus mutans monoclonal antibodies test we want to identify the diabetic patients which have an increased risk to develop the periodontal disease. The highest percentage, of 88.1% of all patients included in this study represents the subjects with a level greater than 500,000 cfu / mL of streptococcus mutans. The Kruskal-Wallis test reveals a value of p = 0.283 resulted from the status of diabetes in patients and the level of streptococcus mutans in saliva. In conclusion, the status of diabetes in patients seems not to influence the salivary level of mutans streptococci determined with the method used in our study.


2020 ◽  
pp. 036319902096739
Author(s):  
Josep Lluís Mateo Dieste

In the Arab world, the recognized children of elite men and slave women could adopt the status of their father, ignoring the slave origin of the mother, owing to a system of patrilineal transmission. This regime co-existed with negative stereotypes toward slaves and blackness, despite the very fact that—as this study of notable families in Tetouan between 1859 and 1956 demonstrates—skin color was not the determinant factor to form part of this group. Rather, it was based on the social definition of filiation, leading to legal disputes between family members to delineate the boundaries of kinship.


2021 ◽  
pp. 1-10
Author(s):  
Alan Granadino ◽  
Eirini Karamouzi ◽  
Rinna Kullaa

Writing and researching Southern Europe as a symbiotic area has always presented a challenging task. Historians and political scientists such as Stanley Payne, Edward Malefakis, Giulio Sapelli, and Roberto Aliboni have studied the concept of Southern Europe and its difficult paths to modernity. They have been joined by sociologists and anthropologists who have debated the existence of a Southern European paradigm in the nineteenth and twentieth centuries and the arduous transformation of the region's welfare systems, economic development, education and family structures. These scholarly attempts to understand the specificities of Southern Europe date back to the concerns of Western European Cold War strategists in the 1970s, many of whom were worried about the status quo of the region in the aftermath of the fall of the dictatorships. But this geographical and geopolitical definition of the area did not necessarily follow existing cultural, political and economic patterns. Once the Eurozone crisis hit in the 2000s these questions came back with renewed force but with even less conceptual clarity, as journalists and pundits frequently gestured towards vague notions of what they considered to be ‘Southern Europe’.


2021 ◽  
pp. 0958305X2198988
Author(s):  
Nur Syakirah Rabiha Rosman ◽  
Noor Aniza Harun ◽  
Izwandy Idris ◽  
Wan Iryani Wan Ismail

The emergence of technology to produce nanoparticles (1 nm – 100 nm in size) has drawn significant researchers’ interests. Nanoparticles can boost the antimicrobial, catalytic, optical, and electrical conductivity properties, which cannot be achieved by their corresponding bulk. Among other noble metal nanoparticles, silver nanoparticles (AgNPs) have attained a special emphasis in the industry due to their superior physical, chemical, and biological properties, closely linked to their shapes, sizes, and morphologies. Proper knowledge of these NPs is essential to maximise the potential of biosynthesised AgNPs in various applications while mitigating risks to humans and the environment. This paper aims to critically review the global consumption of AgNPs and compare the AgNPs synthesis between conventional methods (physical and chemical) and current trend method (biological). Related work, advantages, and drawbacks are also highlighted. Pertinently, this review extensively discusses the current application of AgNPs in various fields. Lastly, the challenges and prospects of biosynthesised AgNPs, including application safety, oxidation, and stability, commercialisation, and sustainability of resources towards a green environment, were discussed.


2020 ◽  
Vol 48 (3) ◽  
pp. 457-494
Author(s):  
Sonja Zeman

AbstractIs there a ‚narrative syntax‘, i. e. a special grammar restricted to narrative fiction? Starting from this question which has been investigated since early structuralism, the paper focusses on grammatical characteristics of narrative discourse mode and their implications for a linguistic theory of narration. Its goal is two-fold: In a first step, the traditional accounts by Benveniste, Hamburger, Kuroda and recent typological studies are brought together in order to support the claim that the distinction between narrative and non-narrative discourse mode is a fundamental one that has consequences for the use of grammar. In a second step, I discuss three central questions within the intersection between narrative micro- and macro-structures, namely (i) the definition of narrativity, (ii) the status of the narrator, and (iii) the relation between narration and fictionality. In sum, the article argues that investigations on the ‘grammar of narration’ do not just offer insights into a specific text configuration next to others, but are deeply linked to fundamental theoretical questions concerning the architecture of language – and that the comparison between linguistic and narratological categories offers a potential for addressing them.


1998 ◽  
Vol 545 ◽  
Author(s):  
Ke-Feng Cai ◽  
Ce-Wen Nan ◽  
Xin-Min Min

AbstractB4C ceramics doped with various content of Si (0 to 2.03 at%) are prepared via hot pressing. The composition and microstructure of the ceramics are characterized by means of XRD and EPMA. Their electrical conductivity and Seebeck coefficient of the samples are measured from room temperature up to 1500K. The electrical conductivity increases with temperature, and more rapidly after 1300K; the Seebeck coefficient of the ceramics also increases with temperature and rises to a value of about 320μVK−1. The value of the figure of merit of Si-doped B4C rises to about 4 × 10−4K−1 at 1500K.


2009 ◽  
Vol 78 (3) ◽  
pp. 309-342 ◽  
Author(s):  
Patrik Johansson

AbstractUnder Chapter VII of the Charter of the United Nations, the Security Council has the unique authority to make decisions that are binding on member states. However, the lack of a standard definition of what makes a Security Council resolution "a Chapter VII resolution" has caused disagreement regarding the status of several resolutions. This is unfortunate as the international community should never have to doubt whether a Security Council resolution is in fact adopted under Chapter VII or not. It is also unnecessary. This article addresses this problem by proposing a definition of Chapter VII resolutions, based on two criteria referred to as "Article 39 determinations" and "Chapter VII decisions". On the basis of the proposed definition, the article describes and analyses a dramatic increase in the use of Chapter VII during the post-Cold War era. It concludes that as Chapter VII has come to constitute the majority of Security Council resolutions in recent years, the resort to Chapter VII no longer signifies exceptional determination and resolve, which it did during the Cold War; instead Chapter VII today implies business as usual. An appendix lists all Chapter VII resolutions from 1946–2008.


2021 ◽  
Vol 5 (2) ◽  
pp. 33-46
Author(s):  
Antonio C. Cuyler

This article represents a snapshot and analysis of U. S. service arts organizations’ DEI statements and activities in 2018. At that time, many primarily White-serving U. S. cultural organizations responded defensively to accusations of elitism and a harmful rigged funding system that maintained the status quo by awarding most cultural funding to these organizations while undermining the health and vitality of cultural organizations by and for historically oppressed communities (Sidford, 2011). Furthermore, Helicon Collaborative (2017) found that even with a host of cultural equity, “diversity” projects (Tseng 2016), and public-facing DEI statements, little had changed within six years. Therefore, this study uses directed and summative content analysis to investigate the research question “what do cultural equity and diversity statements communicate about cultural organizations’ positions on DEI?” This study also uses Frankfurt’s (2005) essay On Bullshit and Laing’s (2016) two-prong definition of accountability as a theoretical framework to examine if and how cultural organizations hold themselves accountable for achieving DEI in the creative sector. Lastly, readers should keep in mind that the public murder of Geor-ge Floyd in 2020 has hastened all of the service arts organizations’ access, diversity, equity, and inclusion (ADEI) work examined in this study.


2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Ilenia Caleo

Language "is a place of struggle," says bell hooks. The relationship between art and feminism is complex and stratified, for this reason the definition of "feminist art" is tricky. I attempt here a recognition of theoretical landmarks and epistemologies come forth in the debate that examined the intersection between artistic practices and experiments of feminist policies, from the historical speeches of Nochlin, Pollock, Phelan to the Italian anomaly marked by Carla Lonzi’s eccentric work, up to to the most recent openings. From this scheme, questions active at present appear, relating to the patriarchal myth of authorship, to the status of the work, to the invisibility of material processes and to cultural appropriation. The prospect is one of a thought of practices destabilizing the canon through strategies of decolonization, countercultural practices, "positional geographies" and new epistemologies.


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