Open Innovation, ambiguity and technological convergence

Objectives. Current paper aims to provide a fresh conceptual framework on the relationship among open innovation, decision ambiguity, and technological convergence. We argue that there is a curvilinear relationship between open innovation and both technological convergence and ambiguity. Contained level of convergence and ambiguity foster open innovation, whilst an excess of them is an impediment to collaboration. Technological convergence further acts as a moderator for ambiguity, in light of the benefits of isomorphism. Methodology. We propose a conceptual framework for open innovation decisions after accurately reviewing the main literature antecedents. Findings. We suggest an inverse u-shaped relationship between open innovation and either ambiguity or technological convergence. Research limits. In future, the theoretical framework proposed by thus study has to be tested with robust and proper statistical techniques on large scale samples. Practical implications. The model offers a heuristic for open innovation decisions under ambiguity. Originality of the study. To the best of our knowledge, the relationship linking open innovation, technological convergence and ambiguity emerges as a literature gap. This study tackles this issue, proposing an interpretation for the analysis of alliances decision in innovation

VGF changes during the estrous cycle: a novel endocrine role for TLQP peptides?

Although the VGF derived peptide TLQP-21 stimulates gonadotropin-releasing hormone (GnRH) and gonadotropin secretion, available data on VGF peptides and reproduction are limited. We used antibodies specific for the two ends of the VGF precursor, and for two VGF derived peptides namely TLQP and PGH, to be used in immunohistochemistry and enzyme-linked immunosorbent assay complemented with gel chromatography. In cycling female rats, VGF C-/N-terminus and PGH peptide antibodies selectively labelled neurones containing either GnRH, or kisspeptin (VGF N-terminus only), pituitary gonadotrophs and lactotrophs, or oocytes (PGH peptides only). Conversely, TLQP peptides were restricted to somatostatin neurones, gonadotrophs, and ovarian granulosa, interstitial and theca cells. TLQP levels were highest, especially in plasma and ovary, with several molecular forms shown in chromatography including one compatible with TLQP-21. Among the cycle phases, TLQP levels were higher during metestrus-diestrus in median eminence and pituitary, while increased in the ovary and decreased in plasma during proestrus. VGF N- and C-terminus peptides also showed modulations over the estrous cycle, in median eminence, pituitary and plasma, while PGH peptides did not. In ovariectomised rats, plasmatic TLQP peptide levels showed distinct reduction suggestive of a major origin from the ovary, while the estrogen-progesterone treatment modulated VGF C-terminus and TLQP peptides in the hypothalamus-pituitary complex. In in vitro hypothalamus, TLQP-21 stimulated release of growth hormone releasing hormone but not of somatostatin. In conclusion, various VGF peptides may regulate the hypothalamus-pituitary complex via specific neuroendocrine mechanisms while TLQP peptides may act at further, multiple levels via endocrine mechanisms involving the ovary

Tuning the atomic and domain structure of epitaxial films of multiferroic BiFeO3

Recent works have shown that the domain walls of room-temperature multiferroic BiFeO3 (BFO) thin films can display distinct and promising functionalities. It is thus important to understand the mechanisms underlying domain formation in these films. High-resolution x-ray diffraction and piezo-force microscopy, combined with first-principles simulations, have allowed us to characterize both the atomic and domain structure of BFO films grown under compressive strain on (001)-SrTiO3, as a function of thickness. We derive a twining model that describes the experimental observations and explains why the 71o domain walls are the ones commonly observed in these films. This understanding provides us with a new degree of freedom to control the structure and, thus, the properties of BiFeO3 thin films.Comment: RevTeX; 4 two-column pages; 4 color figures. Figure 2b does not seem to display well. A proper version can be found in the source fil

Critical Temperature tuning of Ti/TiN multilayer films suitable for low temperature detectors

We present our current progress on the design and test of Ti/TiN Multilayer for use in Kinetic Inductance Detectors (KIDs). Sensors based on sub-stoichiometric TiN film are commonly used in several applications. However, it is difficult to control the targeted critical temperature $T_C$, to maintain precise control of the nitrogen incorporation process and to obtain a production uniformity. To avoid these problems we investigated multilayer Ti/TiN films that show a high uniformity coupled with high quality factor, kinetic inductance and inertness of TiN. These features are ideal to realize superconductive microresonator detectors for astronomical instruments application but also for the field of neutrino physics. Using pure Ti and stoichiometric TiN, we developed and tested different multilayer configuration, in term of number of Ti/TiN layers and in term of different interlayer thicknesses. The target was to reach a critical temperature $T_C$ around $(1\div 1.5)$ K in order to have a low energy gap and slower recombination time (i.e. low generation-recombination noise). The results prove that the superconductive transition can be tuned in the $(0.5\div 4.6)$ K temperature range properly choosing the Ti thickness in the $(0\div 15)$ nm range, and the TiN thickness in the $(5\div 100)$ nm rang

Hubungan Intensitas Kebisingan dengan Gangguan Psikologis Pekerja Departemen Laundry Bagian Washing PT. X Semarang

The use of technology in the workplace in terms of facilities and infrastructure will generate noise or unwanted sound that will cause health problems in workers that occupational diseases. The impact of noise on health that occurs in labor could be psychological disorders such as convenience disorders, stress, insomnia, easy emotion, and impaired concentration which can cause accidents. The purpose of this study was to analyze the relationship of noise intensity with psychological disorders laundry department worker washing part of PT. X Semarang. The design of the study is a cross sectional method with the type of explanatory research and observational approach. The population in this study was the morning shift workers who work at the washing amounted to 110 people, the samples taken were 76 people using purposive sampling technique. The sources was data obtained from the measurement noise and interviews. Based on the research showed that workers experience psychological disorders. The statistical test used the Spearman rank correlation test at α 5% (0,05) showed r = 0,894 with p value = 0,000. It was concluded that there way a relationship with the noise intensity psychological disturbances parts washing laundry department worker PT. X Semaran

Presència del gat domèstic, Felis silvestris catus (Schreber, 1775), i del gat serval, Felis silvestris, en un espai natural protegit: el cas del Parc Natural Serra de Mariola (sud-est espanyol)

Presencia del gato doméstico, Felis silvestris catus (Schreber, 1775), y del gato montés, Felis silvestris, en un espacio natural protegido: el caso del Parque Natural Serra de Mariola (sureste español) El principal objetivo de esta investigación es conocer aspectos ecológicos, de distribución e impactos del gato doméstico dentro de la sierra de Mariola. El área de estudio es un parque natural de 17.500 hectáreas situado en el sur del País Valenciano. Un mejor conocimiento de su distribución será de interés para la definición de medidas de gestión de fauna del parque. Utilizando técnicas de fototrampeo se recopilaron 29.941 imágenes con algún contacto animal. El 0,62% de las fotografías registradas son de gato doméstico, de manera que se ha detectado su presencia en 29 de las 63 cuadrículas (2 x 2 km) del Parque Natural Serra de Mariola (el 46,03%). El periodo de muestreo se prolongó desde enero hasta septiembre de 2010. Este estudio ha permitido integrar la información recopilada en el campo en bases de datos a fin de evaluar la presencia del gato doméstico en la sierra de Mariola. Datos publicados en GBIF (doi:10.15470/p7evig).Presence of domestic cat, Felis silvestris catus (Schreber, 1775), and wild cat, Felis silvestris, in a natural protected area: the case of Serra de Mariola Natural Park (SE of Spain)The main objective of this research was to determine the ecological aspects, distribution, and impact of domestic cat in the Serra de Mariola. The study area is a natural park of 17,500 hectares located in the south of the Valencia Community. Better knowledge of the distribution of this cat will help define management measures in the park. Using camera traps, we collected 29,941 images of animal contact. A total of 0.62% of these photographs were of domestic cat, the presence of which was detected in 29 of 63 grids (2 x 2 km) in Serra de Mariola Natural Park (46.03%). Sampling was performed from January to September 2010. The study allowed us to integrate the information collected in the field into databases and to evaluate the presence of domestic cat in the Serra de Mariola.Data published through GBIF (doi:10.15470/p7evig).El principal objectiu d’aquesta recerca és conèixer aspectes ecològics, de distribució i d’impactes del gat domèstic dins de la serra de Mariola. L’àrea d’estudi és un parc natural de 17.500 hectàrees situat al sud del País Valencià. Un millor coneixement de la distribució serà d’interès per a la definició de mesures de gestió de fauna del parc. Utilitzant tècniques de fototrampeig es van recopilar 29.941 imatges amb algun contacte animal. El 0,62% de les fotografies enregistrades són de gat domèstic, de manera que se n’ha detectat la presència en 29 de les 63 quadrícules (2 x 2 km) del Parc Natural de la Serra de Mariola (el 46,03%). El període de mostreig es va prolongar des de gener fins a setembre de 2010. Aquest estudi ha permès integrar la informació recopilada al camp en bases de dades per avaluar la presència del gat domèstic a la serra de Mariola. Dades publicades a GBIF (doi:10.15470/p7evig)