Search results for "BES"

Transitions in Individual Vocational Education Pathways: Challenges and Collaborative Solutions

2012

This chapter draws upon some of the main results of two Finnish nationwide case studies on how common efforts of education providers and organizations’ personnel support VET (vocational education and training) students along their individual learning paths. The first study concerns best practices to prevent early leaving, and the second was a Finnish national pilot programme to assist uncertain students who have somewhat weak prerequisites to enter vocational education. Some excellent solutions are presented, but special challenges for the learner, organization and staff are also revealed. The solutions for excellence promote practices, strategies and structures that support students’ trans…

[Pragmàtica, 1633, 03, 04]

Caplletra orn. Sign.: Aa6 Port. amb esc. xil. reial Reclams

Twisting graphene nanoribbons into carbon nanotubes

2011

Although carbon nanotubes consist of honeycomb carbon, they have never been fabricated from graphene directly. Here, it is shown by quantum molecular-dynamics simulations and classical continuum-elasticity modeling, that graphene nanoribbons can, indeed, be transformed into carbon nanotubes by means of twisting. The chiralities of the tubes thus fabricated can be not only predicted but also externally controlled. This twisting route is an opportunity for nanofabrication, and is easily generalizable to ribbons made of other planar nanomaterials.

Jaynes-Cummings model with atomic position distribution

1995

The position as well as the width of the atomic wave packet passing through an optical cavity may affect the matter-field interaction. As a result, the internal dynamics of a two-level atom, such as the Rabi oscillations or the collapse and revival phenomenon, may be strongly modified with respect to the standard Jaynes-Cummings model. In particular, for a sufficiently large spread of the atomic position, the atomic population inversion displays the characteristic ringing behavior of the Bessel function ${\mathit{J}}_{0}$ differently from the usual full Rabi oscillation.

Characterization of electrospun poly(lactide) composites containing multiwalled carbon nanotubes

2019

The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The authors would like to thank the Ministry of Education, Science and Technological Development, Republic of Serbia, for funding projects III45022 and 172056 and European Cooperation in Science and Technology (COST) action CA15107.

Raman investigation of single oxidized carbon nanotubes

2001

The oxidation process of single-walled carbon nanotubes via nitric acid treatment was followed by IR-, UV-Vis-NIR, and single bundle Raman spectroscopy. The introduction of functional, oxygen-containing groups is revealed by an additional absorption band at 1725 cm−1, characteristic of carbonyl stretch vibrations. No significant shift of the optical absorption bands could be detected after oxidation. The combination of atomic force microscopy and confocal scanning resonance-enhanced Raman microscopy was used to investigate thin bundles and, eventually, individual nanotubes in detail. These experiments enabled determination of the dependence of the Raman intensity of the G-line (around 1590 …

Il consenso informato ai trattamenti sanitari sui minori e decisioni di fine vita. Riflessioni comparatistiche

2019

The essay deals with the informed consent to allow or to refuse medical treatment for pediatric patients, in a comparative law perspective. The first part focuses on the principle of personal autonomy and the rights to health and to life for patiens who lack capacity, as enshrined in Italian legislation. In determining care and treatment in relation to their child, parents have to take into account the physical and mental well-being, life and dignity of the person, as fully as possible (art. 3, L. 219/2017). The second part of the paper investigates the consequences of parents' refusal to interrupt or continue life-sustaining treatment in relation to infants suffering from serious and incur…

Perioperative and periprocedural airway management and respiratory safety for the obese patient: 2016 SIAARTI Consensus.

2016

Proper management of obese patients requires a team vision and appropriate behaviors by all health care providers in hospital. Specialist competencies are fundamental, as are specific clinical pathways and good clinical practices designed to deal with patients whose Body Mass Index (BMI) is ≥30 kg/m2. Standards of care for bariatric and non-bariatric surgery and for the critical care management of this population exist but are not well defined nor clearly followed in every hospital. Thus every anesthesiologist is likely to deal with this challenging population. Obesity is a multisystem, chronic, proinflammatory disorder. Unfortunately many countries are facing a marked increase in the obese…

Crisis communication, anticipated food scarcity, and food preferences: Preregistered evidence of the insurance hypothesis

2021

Abstract Whereas large-scale consumption of energy-dense foods contributes to climate change, we investigated whether exposure to climate change-induced food scarcity affects preferences toward these foods. Humans’ current psychological mechanisms have developed in their ancestral evolutionary past to respond to immediate threats and opportunities. Consequently, these mechanisms may not distinguish between cues to actual food scarcity and cues to food scarcity distant in time and space. Drawing on the insurance hypothesis, which postulates that humans should respond to environmental cues to food scarcity through increased energy consumption, we predicted that exposing participants to climat…

Strategies to reduce lipid consumption

2020

Abstract Lipids are macronutrients that have important functions in the body like storing energy, signaling, and acting as structural components in cell membranes. However, the daily consumption of a high-lipid diet has been involved in the development and maintenance of obesity, a disease which its prevalence is increasing globally. Because of that, the food industry is working in strategies to develop new food products with the aim of reducing the lipid intake. Among these strategies are (1) changes in the structural design of food, (2) the use of carbohydrate and/or fat substitutes, and (3) the inhibition of enzymes responsible for the digestion of sugars and/or lipids. These strategies …