Pengembangan Crackers Dengan Penambahan Tepung Ikan Patin [Pangasius Hypophthalmus] Dan Tepung Wortel [Daucus Carota L.]

Diversification of food needs to be done to improve people's eating habits and overcome the main nutritional problems in Indonesia. Striped Fish and carrot flour is good foodstuffs to add to the crackers rich in nutrition especially protein and give a natural compelling color. To know the effect of the addition of striped Fish and carrot flour to the sensory qualities and protein content in crackers. Four different crackers were prepared using these formulation: 1) control; 2) the addition 25 g striped catfish and carrot flour; 3) the addition 50 g striped catfish and carrot flour; and 4) the addition 100 g striped catfish and carrot flour. The preference test was conducted in this research to assess the organoleptic parameters, and analyse the protein content. The sensory evaluation revealed that composite crackers made by adding striped Fish and carrot flour 0, 25g, 50g and 100g had significant differences (p<0.05) in colour, texture, odour and flavor of sensory parameters. Crackers made with 25g striped catfish and carrot flour is the most accepted by panelis with Score Card evaluation method 3,56 out of 5. This formulation had 16.19 percent protein content. Striped Fish and carrot with a correct formulation could improve the sensory quality and protein content of crackers, so that can be good ingredients to improve food products

Producción cerámica en la edad del Bronce en Catalunya: el ejemplo de la cueva de Les Pixarelles (Osona)

La cerámica aparecida en la cueva de Les Pixarelles proporciona un conjunto ideal para estudiar la evolución de las producciones cerámicas desde la fase final del Neolítico hasta el Bronce final en Catalunya. El estudio diacrónico de las cerámicas se ha basado en la combinación del estudio tipológico y estilístico y en un estudio petrográfico que ha permitido caracterizar diversas fábricas. Las diferencias observadas responden a la utilización de diversas materias primas y a la utilización de diferentes técnicas de preparación de pasta que revelan una interesante complejidad para la producción cerámica de la zona.The ceramic found at PixareJles Cave provides an excellent assemblage to study pottery-making traditions in Catalonia from Late Neolithic to Late Bronze Age. The present study has been carried out by combining a typological and stylistical study and petrografic analysis. Several fabrics, according to composition and texture, have been characterised. These fabrics reflect the use of different raw materials -according to different raw materials procurement strategies- and different paste recipes, indicating an interesting complexity for the pottery-making traditions within the area of study

"Better Safe than Sorry" - Individual Risk-free Pension Schemes in the European Union - Macroeconomic Benefits, the Mobile Working Citizen's Perspective and Why Nots

Variations between the diverse pension systems in the member states of the European Union hamper labour market mobility, across country borders but also within the countries of the European Union. From a macroeconomic perspective, and in the light of demographic pressure, this paper argues that allowing individual instead of collective pension building would greatly improve labour market flexibility and thus enhance the functioning of the monetary union. I argue that working citizens would benefit, for three reasons, from pension saving in a risk-free savings account. First, citizens would have a clear picture of the accumulation of their own pension savings throughout their working life. Second, they would pay hardly any extra costs and, third, once retired they would not be subject to the whims of government or other pension fund managers. This paper investigates the feasibility of individual pension building under various parameter settings by calculating the pension saved during a working life and the pension dis-saved after retirement. The findings show that there are no reasons why the European Union and individual member states should not allow individual risk-free pension savings accounts. This would have macroeconomic benefits and provide a solid pension provision that can enhance mobility, instead of engaging workers in different mandatory collective pension schemes that exist around in the European Union

D3MOBILE METROLOGY WORLD LEAGUE: TRAINING SECONDARY STUDENTS ON SMARTPHONE-BASED PHOTOGRAMMETRY

The advent of the smartphones brought with them higher processing capabilities and improved camera specifications which boosted the applications of mobile-based imagery in a range of domains. One of them is the 3-D reconstruction of objects by means of photogrammetry, which now enjoys great popularity. This fact brings potential opportunities to develop educational procedures in high schools using smartphone-based 3-D scanning techniques. On this basis, we designed a Project Based e-Learning (PBeL) initiative to introduce secondary students to the disciplines of photogrammetry through the use of their mobile phones in an attractive and challenging way for them. The paper describes the motivation behind the project "D3MOBILE Metrology World League", supported by ISPRS as part of the "Educational and Capacity Building Initiative 2020"programme. With this Science, Technology, Engineering and Mathematics (STEM) initiative, we implement a methodology with the format of an international competition, that can be adapted to daily classwork at the high school level anywhere in the world. Therefore, the championship is essentially structured around a collection of well-thought-out e-learning materials (text guidelines, video tutorials, proposed exercises, etc.), providing a more flexible access to content and instruction at any time and from any place. The methodology allows students to gain spatial skills and to practice other transversal abilities, learn the basics of photogrammetric techniques and workflows, gain experience in the 3-D modelling of simple objects and practice a range of techniques related to the science of measurementS

Theory of neutral and charged exciton scattering with electrons in semiconductor quantum wells

Electron scattering on both neutral ($X$) and charged ($X^-$) excitons in quantum wells is studied theoretically. A microscopic model is presented, taking into account both elastic and dissociating scattering. The model is based on calculating the exciton-electron direct and exchange interaction matrix elements, from which we derive the exciton scattering rates. We find that for an electron density of $10^9 {\rm cm}^{-2}$ in a GaAs QW at $T=5K$, the $X^-$ linewidth due to electron scattering is roughly twice as large as that of the neutral exciton. This reflects both the $X^-$ larger interaction matrix elements compared with those of $X$, and their different dependence on the transferred momentum. Calculated reflection spectra can then be obtained by considering the three electronic excitations of the system, namely, the heavy-hole and light-hole 1S neutral excitons, and the heavy-hole 1S charged exciton, with the appropriate oscillator strengths.Comment: 18 pages, 12 figure