Search results for "CID"

Hyaluronic acid based microparticles for applications in regenerative medicine

2018

The Transcallosal Anterior Interfoniceal Approach: A Microsurgical Anatomy Study

2014

Objectives: A plethora of surgical strategies have been described to reach deeply lesions situated within the third ventricle, including the Rosenfeld or anterior transcallosal interfoniceal approach (TAIF). Firstly, introduced in 2001, it consists of a small callosotomy followed by the midline transseptal dissection of fornices to enter the roof of the third ventricle. The aim of this microsurgical anatomy study is to describe and show each stage of the surgical procedure, focusing on the possible trajectories to anatomic landmarks. Participants: A total of twenty adult cadaveric specimens were used in this study. Using x3 to x40 magnifications the surgical dissection was carried out in a …

Predicting stiffness and strength of birch pulp:Polylactic acid composites

2016

This paper studies failure of birch pulp–polylactic acid composites. Stiffness and strength are calculated using the theory of short fibre composites and the results are compared to experimental data. The results differed from the experimental values by 0–6%. With less aligned fibres the short fibre theory is not feasible. The performance of the 40 wt% birch pulp – polylactic acid composite is predicted with X-ray microtomography based finite element modelling, and the results are compared with experiments. Stiffness results differed from experiments by 1–17% . By adding into the models a third material phase representing the interface between the fibres and the matrix, the stress–strain c…

Microwave-assisted conversion of novel biomass materials into levulinic acid

2018

Levulinic acid is considered one of the most important platform chemicals. It is currently produced mainly from lignocellulosic biomasses. However, there are also other abundant biomass materials, which could be used as raw materials for levulinic acid production. In this work, levulinic acid was produced from two novel biomasses in the presence of Brønsted (H2SO4) and Lewis acid (CrCl3·6H2O or AlCl3·6H2O) catalysts. The studied materials were carbohydrate-rich potato peel waste and sporocarps of the fungus Cortinarius armillatus. Reaction conditions, i.e., time, temperature, H2SO4, and Lewis acid concentrations, were studied by utilizing full 24-factorial experimental designs. Microwave ir…

Discrimination of almonds (Prunus dulcis) geographical origin by minerals and fatty acids profiling

2016

Twenty-one almond samples from three different geographical origins (Sicily, Spain and California) were investigated by determining minerals and fatty acids compositions. Data were used to discriminate by chemometry almond origin by linear discriminant analysis. With respect to previous PCA profiling studies, this work provides a simpler analytical protocol for the identification of almonds geographical origin. Classification by using mineral contents data only was correct in 77% of the samples, while, by using fatty acid profiles, the percentages of samples correctly classified reached 82%. The coupling of mineral contents and fatty acid profiles lead to an increased efficiency of the clas…

In vitro toxicity assessment and mitigation strategies of beauvericin, sterigmatocystin and patulin / Evaluación de la toxicidad in vitro y estrategi…

2016

Las micotoxinas son contaminantes químicos naturales presentes en los alimentos y piensos que representan un problema preferente económico y de salud pública. El conocimiento de los efectos tóxicos y exposición a las micotoxinas permite caracterizar los riesgos de la población. Se ha evaluado la toxicidad de la beauvericina, esterigmatocistina y patulina de forma individual y combinada mostrando efectos citotóxicos. Se ha observado que todas las micotoxinas produjeron citotoxicidad de manera individual al aumentar la concentración y el tiempo de exposición, siendo las células CHO-K1 más sensibles de mayor a menor potencia a la patulina, beauvericina y esterigmatocistina. Además, se observar…

Greater mitochondrial energy production provides resistance to ocean acidification in "winning" hermatypic corals

2021

Coral communities around the world are projected to be negatively affected by ocean acidification. Not all coral species will respond in the same manner to rising CO2 levels. Evidence from naturally acidified areas such as CO2 seeps have shown that although a few species are resistant to elevated CO2, most lack sufficient resistance resulting in their decline. This has led to the simple grouping of coral species into “winners” and “losers,” but the physiological traits supporting this ecological assessment are yet to be fully understood. Here using CO2 seeps, in two biogeographically distinct regions, we investigated whether physiological traits related to energy production [mitochondrial e…

Pokémon GO 2016: Exploring Situational Contexts of Critical Incidents in Augmented Reality

2016

Pokémon GO, an augmented reality mobile game, captured the attention of millions of people around the world in July 2016. Various sources from around the globe have reported both positive and negative incidents and outcomes related to the game. Some of the incidents have been particularly remarkable for the player, i.e., critical incidents. A critical incident is a single experience, which a person perceives or remembers as unusually positive or negative. Critical incidents typically are highly influential for human behaviour, and thus, important to study. Playing augmented reality games can take place in varying situational contexts. Situational context includes information that can be use…

User behaviours after critical mobile application incidents : the relationship with situational context

2017

Users occasionally have critical incidents with information systems (IS). A critical IS incident is an IS product or service experience that a user considers to be unusually positive or negative. Critical IS incidents are highly influential in terms of users’ overall perceptions and customer relationships; thus, they are crucial for IS product and service providers. Therefore, it is important to study user behaviors after such incidents. Within IS, the relationships between the situational context and user behaviors after critical incidents have not been addressed at all. Prior studies on general mobile use as a related research area have recognized the influence of the situational context,…

Handicap psychique, cognitif ou mental : les parcours commentés comme méthode d’élucidation de la teneur des "gênes" à la mobilité quotidienne

2015

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