Institution
Universidade Estadual de Londrina
Education•Londrina, Brazil•
About: Universidade Estadual de Londrina is a education organization based out in Londrina, Brazil. It is known for research contribution in the topics: Population & Toxoplasma gondii. The organization has 13052 authors who have published 19291 publications receiving 212123 citations.
Topics: Population, Toxoplasma gondii, Oxidative stress, Starch, Germination
Papers published on a yearly basis
Papers
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TL;DR: Results indicate that although neem extract is less toxic to P. lineatus than other synthetic insecticides used in fish-farming it does cause functional and morphological changes in this fish species.
Abstract: The aim of this study was to determine the toxicity of the aqueous extract of neem leaves, a product extensively used in fish-farms as alternative for the control of fish parasites and fish fry predators, for the neotropical fish Prochilodus lineatus . The 24 h LC 50 of neem leaf extract for juveniles P. lineatus was estimated as 4.8 g L − 1 ; the fish were then exposed for 24 h to 2.5, 5.0 and 7.5 g L − 1 or only clean water (control). Plasma glucose levels were higher in fish exposed to 2.5 g L − 1 and 5.0 g L − 1 neem extract, relative to control, indicating a typical stress response. Neem extract did not interfere with the osmoregulating capacity of the fish, as their plasma sodium, chloride, total protein and osmolarity did not change. The presence of the biopesticide interfered with the antioxidant defense system of P. lineatus , as there was a decrease in liver catalase activity at all neem concentrations and the detoxifying enzyme glutathione- S -transferase was activated in fish exposed to 5.0 g L − 1 . Fish exposed to all neem extract concentrations exhibited damaged gill and kidney tissue. These results indicate that although neem extract is less toxic to P. lineatus than other synthetic insecticides used in fish-farming it does cause functional and morphological changes in this fish species.
155 citations
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TL;DR: Simple interventions, such as maintaining DR temperature >25 °C, reducing maternal hypothermia prior to delivery, providing plastic bags/wraps and caps for the newly born infants, and using warm resuscitation gases, may decrease Hypothermia at NICU admission and improve early neonatal survival.
155 citations
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TL;DR: In this paper, the authors describe the catalytic oxidation of urea performed by nickel hydroxide and nickel/cobalt oxide modified electrodes by using both electrodeposited films and nanoparticles.
153 citations
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TL;DR: A simple taxonomy to facilitate classification and study of workstation alternatives is introduced, the diversity of research undertaken to date related to energy balance is cataloged, and the gaps and opportunities for a research agenda for work station alternatives moving forward are summarized.
Abstract: Emerging evidence supports the feasibility of raising daily energy expenditure (EE) by replacing office work-related sedentary behavior with low-intensity non-exercise physical activity (PA) via workstation alternatives to the traditional office chair and desktop computer-based combinations. The purpose of this review article is to introduce a simple taxonomy to facilitate classification and study of workstation alternatives, catalog the diversity of research undertaken to date related to energy balance, and present and summarize the gaps and opportunities for a research agenda for workstation alternatives moving forward. A PubMed search elicited 57 English language articles published since 2000; additional articles were identified by reviewing reference sections and contacting authors. Selection criteria ultimately focused on use of workstation alternatives during simulated or real work tasks. The EE of sitting on a stability ball or using sit-stand/standing desks is comparable to the traditional seated condition (≅1.2 kcal min(-1)). The treadmill and pedal desks (active workstation alternatives) offer the greatest promise in terms of EE (≅2-4 kcal min(-1)). Sitting on a stability ball or using sit-stand/standing desks does not impair task performance relative to the traditional seated condition. Some evidence of typing impairment is inconsistently reported with active workstation alternatives; the finer motor skills required for mouse-related tasks may be more affected. Little is known about learning or adaptation with practice. Users are generally accepting of workstation alternatives; however, there is evidence of less than optimal use. Active workstations (that is, treadmill desks and pedal desks) in particular represent a potential strategy for mitigating the diminished EE inherent to contemporary office-based workplaces, but only if they are scalable. The science supporting active workstations is young and heterogeneous; however, this means that there are many knowledge gaps and opportunities for research, including those focused on implementation issues related to optimizing both employers' and workers' uptake.
152 citations
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TL;DR: This review focuses on the history of taxonomy, biochemical aspects and methods of isolation, identification and quantification of AAB, mainly related to those with important biotechnological applications.
Abstract: The group of Gram-negative bacteria capable of oxidising ethanol to acetic acid is called acetic acid bacteria (AAB). They are widespread in nature and play an important role in the production of food and beverages, such as vinegar and kombucha. The ability to oxidise ethanol to acetic acid also allows the unwanted growth of AAB in other fermented beverages, such as wine, cider, beer and functional and soft beverages, causing an undesirable sour taste. These bacteria are also used in the production of other metabolic products, for example, gluconic acid, l-sorbose and bacterial cellulose, with potential applications in the food and biomedical industries. The classification of AAB into distinct genera has undergone several modifications over the last years, based on morphological, physiological and genetic characteristics. Therefore, this review focuses on the history of taxonomy, biochemical aspects and methods of isolation, identification and quantification of AAB, mainly related to those with important biotechnological applications.
152 citations
Authors
Showing all 13138 results
Name | H-index | Papers | Citations |
---|---|---|---|
Michael Maes | 115 | 807 | 52050 |
Fernando Q. Cunha | 88 | 682 | 31501 |
Mariangela Hungria | 67 | 389 | 15219 |
Petar Popovski | 59 | 756 | 21009 |
Waldiceu A. Verri | 54 | 249 | 10311 |
Thiago M. Cunha | 54 | 268 | 9519 |
Emerson Franchini | 52 | 402 | 9620 |
Celso Vataru Nakamura | 51 | 418 | 10908 |
Diego Augusto Santos Silva | 51 | 389 | 53077 |
Susan M. Tarlo | 50 | 263 | 10850 |
Paulo Caramelli | 45 | 366 | 9666 |
Fabio Pitta | 44 | 213 | 11925 |
Joaquim Gama-Rodrigues | 43 | 225 | 8380 |
Ricardo Almeida | 43 | 250 | 7304 |
Hamilton Roschel | 43 | 235 | 5894 |