Water monitoring by means of digital microscopy identification and classification of microalgae

Author(s):  
Laura Barsanti ◽  
Lorenzo Birindelli ◽  
Paolo Gualtieri

Marine and freshwater microalgae belong to taxonomically and morphologically diverse groups of organisms spanning many phyla with thousands of species. These organisms play an important role as indicators of water...

2014 ◽  
Vol 16 (11) ◽  
pp. 2656-2665 ◽  
Author(s):  
Primo Coltelli ◽  
Laura Barsanti ◽  
Valtere Evangelista ◽  
Anna Maria Frassanito ◽  
Paolo Gualtieri

This paper presents an innovative system, providing a reliable, real time recognition of multi-algal samples for environmental monitoring purposes.


2021 ◽  
Vol 16 (1) ◽  
Author(s):  
F. Haubner ◽  
A. Schneider ◽  
H. Schinke ◽  
M. Bertlich ◽  
B. G. Weiss ◽  
...  

Abstract Background Recurrent spontaneous epistaxis is the most common clinical manifestation and the most debilitating symptom in hereditary haemorrhagic telangiectasia (HHT) patients. To this date, there exist only a classification of HHT patients by different genetic mutations. There is no standard classification for the mucocutaneous endonasal manifestations of HHT. The aim of the present study was to document the variety of endonasal HHT lesions using digital microscopy and to propose a clinical classification. Methods We recorded the endonasal HHT lesions of 28 patients using a digital microscope. We reconstructed the 3D images und videos recorded by digital microscope afterwards and classified the endonasal lesions of HHT in two classes: Grade A, presence of only flat telangiectasias in the mucosa level and Grade B, (additional) presence of raised berry or wart-like telangiectasia spots. We investigated also Haemoglobin level by routine laboratory procedures, plasma VEGF level by ELISA, Severity of epistaxis by epistaxis severity score (ESS) and quality of life by a linear visual analogue scale (VAS). Results We found a higher quality of life and a lower severity of epistaxis in Grade A patients in comparison to Grade B patients. No difference in plasma VEGF level and in Haemoglobin between Grad A patients and Grade B patients could be detected. Plasma VEGF levels showed no gender specific differences. It could also not be correlated to the extranasal manifestation. Conclusion The classification for endonasal manifestation of HHT proposed in this study indicates severity of epistaxis und quality of life. Digital microscopy with the ability of 3D reconstruction of images presents a useful tool for such classifications. The classification of endonasal HHT lesions using digital microscopy allows to evaluate the dynamic of HHT lesions in the course of time independent of examiner. This allows also to evaluate the efficacy of the different treatment modalities by dynamic of HHT lesions. Moreover digital microscopy is very beneficial in academic teaching of rare diseases.


2014 ◽  
Vol 138 (5) ◽  
pp. 658-663 ◽  
Author(s):  
Hangjun Wang ◽  
Camelia S. Sima ◽  
Mary Beth Beasley ◽  
Peter Illei ◽  
Anjali Saqi ◽  
...  

2021 ◽  
pp. 104-110
Author(s):  
Antonina Plechko

The article analyzes the attributive characteristics of celestial bodies: the sun, the moon and the stars in the Middle Polisian beliefs on the basis of dialect texts, which are valuable authentic material for the reconstruction of traditional spiritual culture. The research material was the texts of field research on inanimate objects collected in the territory of the Middle Polissia of Ukraine in 55 settlements of Zhytomyr and Rivne regions during 2010–2019 years. The purpose of our research is to describe tokens that are means of reflecting the attributive characteristics of the nomination of celestial bodies in the Middle Polisian dialects as one of the components of the linguistic picture of the world of a separate dialect space. The subject of analysis is the lexical and syntactic expression of the attributes of the sun, the moon and the stars in the beliefs of Polishchuks (local population of Polisian region. In the research the method of expeditionary collection of material, audio recordings with subsequent decoding and transcription of field material, the method of systematic description of the studied phenomenon for systematizing the collected material were used. The classification of attributes is given and the analysis of meteorological, color, sacred, temporal meanings, on external signs (on the size, on the form) is carried out. The results of the study indicate that the most filled and diverse groups of attributes that make up the Middle Polisian linguistic portrait of the characteristics of celestial bodies are meteorological and color definitions. Meteorological, temporal, external attributes enter into antonymous relations, as they contain in their semantic structure the corresponding positive / negative evaluative element (weather / bad weather). The color attributes, associated with the sun and the moon, are represented only by light and bright colors, there are no dark colors. While describing celestial bodies, we note a group of sacred meanings and adjectives with a gentle color, the suffix of diminution, which indicate a special perception of celestial bodies by Polishchuks. The collected material only partially reflects the characteristics of celestial bodies in the Middle Polisian dialects as one of the components of the linguistic picture of the world, so other means of reflecting the nomination of the sun, moon and stars require detailed study.


2011 ◽  
Vol 16 (1) ◽  
pp. 11-24 ◽  
Author(s):  
Ion Vasi

Social movement researchers recognize the importance of brokerage for the spread of contentious politics. This study proposes a new classification of brokerage and identifies the main types of brokers depending on the subgroups to which actors belong and on the subgroups' miscibility. It also introduces the "diffusion and scale-shift paradox": contention spreads more quickly when brokers connect few groups and when they connect groups that are highly miscible; yet, contention cannot spread widely if brokers do not connect diverse groups and groups with low miscibility. The empirical analysis compares the spread of contention on the issues of peace and civil liberties. Results support the scale-shift paradox—they show that contention on civil liberties diffused to more municipalities and shifted upwards to more states mainly because civil liberty activists built bridges between groups that were at opposite ends of the ideological spectrum and outside the progressive community.


2021 ◽  
Author(s):  
F Kashani ◽  
A Schneider ◽  
H Schinke ◽  
M Bertlich ◽  
BG. Weiß ◽  
...  

Zootaxa ◽  
2018 ◽  
Vol 4448 (1) ◽  
pp. 1 ◽  
Author(s):  
BRONWYN W. WILLIAMS ◽  
PATRICIA G. WEAVER

Ostracods of the family Entocytheridae are obligate ectosymbionts of other crustaceans, including crayfishes, isopods, amphipods, and a species of freshwater crab. Entocytheridae, with five subfamilies, 35 genera, and 213 currently accepted species, represents one the most diverse groups of extant freshwater ostracods. Here, we present the results of an extensive literature review, documenting the often complex historical taxonomic activity and resulting classification of Entocytheridae. This overview highlights inconsistencies, errors, and additional sources of confusion that have been inadvertently introduced into the literature, a number of which have remained uncorrected for decades. Also provided is a comprehensive checklist of taxonomic nomenclature and a list of currently accepted names in Entocytheridae. 


2021 ◽  
Vol 200 ◽  
pp. 105923
Author(s):  
David Rivas-Villar ◽  
José Rouco ◽  
Rafael Carballeira ◽  
Manuel G. Penedo ◽  
Jorge Novo

2021 ◽  
pp. 1-20
Author(s):  
Vivian Hsing-Chun Wang ◽  
Victoria Foster ◽  
Stella S. Yi

Abstract Objective: Dietary recommendations (DRs) in the U.S. may be inadequate at improving diets in racial/ethnic minority communities and may require redesign of the systems driving their development over the long term. Meanwhile, cultural adaptation of evidence-based DRs may be an important strategy for mitigating nutrition disparities, but less is known about the adaptability of these recommendations to meet the needs of diverse groups. We examined the content and origin of major DRs—aspects that provide context on their potential universality across populations and evaluated their potential for cultural adaptation. Design: Case studies of Dietary Approaches to Stop Hypertension (DASH), the Mediterranean diet (MD), the EAT-Lancet diet (EAT), and the NOVA classification system. Setting: United States. Participants: Racial/ethnic minority populations. Results: Current DRs differ in their origin/evolution but are similar in their reductionist emphasis on physical health. DASH has been successfully adapted for some cultures but may be challenged by the need for intensive resources; MD may be more beneficial if applied as part of a broader set of food procurement/preparation practices than as just diet alone; EAT-Lancet adaptation may not honor existing country-specific practices that are already beneficial to human and environmental health (e.g., traditional/plant-based diets); evidence for cultural adaptation is limited with NOVA, but classification of levels of food processing has potential for widespread application. Conclusions: For DRs to equitably support diverse populations, they must move beyond a Eurocentric or ‘general population’ framing, be more inclusive of cultural differences, and honor social practices to improve diet and reduce disparities.


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