Medida Provisória Nº 675, de 2015

Visa a esclarecer as disposições constantes da Medida Provisória nº 675, de 21 de maio de 2015, que “Altera a Lei nº 7.689, de 15 de dezembro de 1988, para elevar a alíquota da Contribuição Social sobre o Lucro Líquido – CSLL em relação às pessoas jurídicas de seguros privados e de capitalização e às referidas nos incisos I a VII, IX e X do § 1º do art. 1º da Lei Complementar nº 105, de 10 de janeiro de 2001”.

Optimization of solution-processed oligothiophene:fullerene based organic solar cells by using solvent additives

The optimization of solution-processed organic bulk-heterojunction solar cells with the acceptor-substituted quinquethiophene DCV5T-Bu-4 as donor in conjunction with PC61BM as acceptor is described. Power conversion efficiencies up to 3.0% and external quantum efficiencies up to 40% were obtained through the use of 1-chloronaphthalene as solvent additive in the fabrication of the photovoltaic devices. Furthermore, atomic force microscopy investigations of the photoactive layer gave insight into the distribution of donor and acceptor within the blend. The unique combination of solubility and thermal stability of DCV5T-Bu-4 also allows for fabrication of organic solar cells by vacuum deposition. Thus, we were able to perform a rare comparison of the device characteristics of the solution-processed DCV5T-Bu-4:PC61BM solar cell with its vacuum-processed DCV5T-Bu-4:C-60 counterpart. Interestingly in this case, the efficiencies of the small-molecule organic solar cells prepared by using solution techniques are approaching those fabricated by using vacuum technology. This result is significant as vacuum-processed devices typically display much better performances in photovoltaic cells. Keywords

Word frequency cues word order in adults: cross-linguistic evidence

[EN] One universal feature of human languages is the division between grammatical functors and content words. From a learnability point of view, functors might provide entry points or anchors into the syntactic structure of utterances due to their high frequency. Despite its potentially universal scope, this hypothesis has not yet been tested on typologically different languages and on populations of different ages. Here we report a corpus study and an artificial grammar learning experiment testing the anchoring hypothesis in Basque, Japanese, French, and Italian adults. We show that adults are sensitive to the distribution of functors in their native language and use them when learning new linguistic material. However, compared to infants’ performance on a similar task, adults exhibit a slightly different behavior, matching the frequency distributions of their native language more closely than infants do. This finding bears on the issue of the continuity of language learning mechanism.

El régimen jurídico de los suelos contaminados en la Comunidad Autónoma del País Vasco

689 p.

半导体量子阱中传播效应对子带间拉比振荡的影响

通过求解麦克斯韦-布洛赫方程组，分别在存在传播效应和无传播效应两种情况下，研究了调制掺杂的半导体量子阱中子带间的拉比振荡。研究发现，与电子-电子之间的相互作用的非线性相比较，传播效应对拉比振荡的影响更大；在不考虑传播效应时，脉冲可以使量子阱中的电子实现一次完整的布居反转，但是当传播效应存在情况下，完全的粒子数反转已不能实现。另外，研究还发现通过改变载流子的密度可以改变传播效应所产生的影响。

Innovación y nuevas tecnologías en la especialidad de conservación y restauración de obras de arte

En el contexto social actual, la profesión del conservador-restaurador de obras de arte cuenta con un reconocimiento bien definido conseguido tras la sedimentación progresiva de unos conocimientos científico-técnicos que cuentan con entidad propia. La profesión, como tal, se encuentra sustentada en unos pilares de conocimiento científico-técnico y humanístico que le facilitan el poder cumplir con la alta responsabilidad que conlleva la salvaguarda del patrimonio artístico. Recaen en este perfil profesional las normas internacionales que la regulan y la evolución científica del conocimiento que se alcanza en el siglo XX respaldando a la especialidad. Por otra parte, las demandas sociales del poder de las imágenes y su asombro ante los objetos singulares establecen unas necesidades que también recaen en este perfil profesional.

beam-shaping microstructure optical fiber

Microstructure optical fiber with uniform intensity distribution of the fundamental mode is proposed. The design guide line and characteristics of this kind fiber are demonstrated. The relationship between refractive index profile and structure parameters is investigated. The mechanism of forming uniform fundamental mode in these fibers is analyzed.

ScAlMgO_4晶体的生长缺陷

采用提拉法生长出φ30 mm×55 mm的ScAlMgO4晶体。在晶体生长过程中有轻微的挥发,粉末X射线衍射分析表明:挥发物质为MgO单相。运用扫描电镜、光学显微镜以及高分辨X射线衍射仪对晶体中的包裹物、开裂、生长条纹和小角晶界缺陷进行了研究。结果表明:温度梯度和热应力是形成晶体中缺陷的主要原因。通过合理设计温场,控制固-液界面的形状及冷却过程的降温速率,可以提高晶体的完整性。

Geoarqueología y reconstrucción de contextos arqueológicos: Contribución y nuevas perspectivas desde el Área de Prehistoria de la Universidad del País Vasco

Homenaje a Ignacio Barandiarán Maestu / coord. por Javier Fernández Eraso, Juan Santos Yanguas.