Non-Euclidean ideal spectrometer

We describe the mathematical scheme for an anomaly-free ideal spectrometer, based on a 2-dimensional plane medium with conical regions of bounded slope. Moreover, the construction may be realised in many different configurations.Comment: 9 pages, 5 figure

The Causal Interpretation of Quantum Mechanics and The Singularity Problem in Quantum Cosmology

We apply the causal interpretation of quantum mechanics to homogeneous quantum cosmology and show that the quantum theory is independent of any time-gauge choice and there is no issue of time. We exemplify this result by studying a particular minisuperspace model where the quantum potential driven by a prescribed quantum state prevents the formation of the classical singularity, independently on the choice of the lapse function. This means that the fast-slow-time gauge conjecture is irrelevant within the framework of the causal interpretation of quantum cosmology.Comment: 18 pages, LaTe

Comments on the Quantum Potential Approach to a Class of Quantum Cosmological Models

In this comment we bring attention to the fact that when we apply the ontological interpretation of quantum mechanics, we must be sure to use it in the coordinate representation. This is particularly important when canonical tranformations that mix momenta and coordinates are present. This implies that some of the results obtained by A. B\l aut and J. Kowalski-Glikman are incorrect.Comment: 7 pages, LaTe

How coordination trajectories influence the performance of interorganizational project networks

This study examines how the joint use of integrators and contracts either enables or hampers coordination and, in turn, the performance of interorganizational project networks. Using extensive qualitative analyses and socio-metric techniques, we investigated coordination among organizations during seven small and medium-sized building projects. Our longitudinal study reveals how integrators develop connecting functions that, together with contracts' steering functions, largely drive coordination dynamics. Further data analyses provide insight into how coordination hinges on the prevalence of connecting or steering, which may more or less fit with coordination needs in various project phases. Given these findings, we theorize the contingent nature of the interplay between the use of integrators and contracts throughout projects. Our findings are integrated into a process model of how coordination trajectories lead to different performance levels of interorganizational project networks. Our study has theoretical implications for the literature on project-based organizing and, more broadly, the literature on interorganizational coordination. (17) How Coordination Trajectories Influence the Performance of Interorganizational Project Networks. Available from: https://www.researchgate.net/publication/316692856_How_Coordination_Trajectories_Influence_the_Performance_of_Interorganizational_Project_Networks [accessed Sep 27, 2017]

Feno de cunhã (Clitoria ternatea L.) para acabamento de cordeiros.

Resumo: Foram utilizados 32 cordeiros, mestiços, durante setenta dias em estudo na Embrapa Caprinos, em Sobral, CE, para determinar a influência do nível de concentrado em dietas para acabamento de cordeiros em confinamento. Os tratamentos foram as seguintes relaçoes forragem:concentrado: 100%:0% (T1), 85%:15% (T2), 70%:30% (T3) e 55%:45% (T4). A forragem fornecida era feno de cunha e o concentrado era composta de 75% de milho e 25% de farelo de soja. 0 ajuste das proporçoes foi feito diariamente, corn base no consumo de volumoso, servido ad libitum. Corn o aumento do nível de concentrado na dieta dos animais, observou-se incrementos lineares (PO,05) quanto aos tratamentos. Conclui-se que todas as raçoes testadas podem ser utilizadas para terminação de cordeiros em confinamento. Cunhã hay (Clitoria ternatea L.) for finishing of lambs. ABSTRACT - Thirty two crossbred lambs were used in a 70 day study at Embrapa Caprinos, in Sobral, CE, Brazil to evaluate the influence of concentrate levels on finishing diets under confinement. The treatments were the following roughage to concentrate relations: 100% to 0% (T1), 85% to 15% (T2), 70% to 30% (T3) and 55% to 45% (T4). The roughage was cunhã hay (Clitoria ternatea L), and the concentrate was composed of corn (75%) and soybean meal (25%). The adjustments of the proportions were made daily, based on the roughage intake, served ad libitum. It was observed that the total dry matter intake increased, the forage intake decreased, the feed efficiency improved and the daily weight gain increased (P0.05) among treatments. It was concluded that any of the diets studied can be used for finishing lambs