Complementarity or substitutability between private and public investment in R&D: An empirical study

In this paper, we investigate the relationship between private and public investment in R&D. Various models proposed in the literature to take account for several instruments policies as: (subsidies, taxes…) are estimated to verify if private and public R&D spending are complement or substitute. Our empirical study is based on a dynamic panel model for a sample of (23) countries over the period 1992-2004. This research is dealing with the relationship between private and public investment in R&D. Results based on the GMM method of Arellano and Bond (1991) and the tests of causality and unit root applied to the panel data show a positive and significant relation between private and public R&D.R&D; Complementarity; Substituability; GMM; Dynamic Panel Data

Identification and Characterization of the Corazonin Receptor and Possible Physiological Roles of the Corazonin-Signaling Pathway in Rhodnius prolixus.

Neuropeptides control many physiological and endocrinological processes in animals, acting as neuroactive chemicals within the central and peripheral nervous systems. Corazonin (CRZ) is one such neuropeptide that has a variety of physiological roles associated with control of heartbeat, ecdysis behavior initiation, and cuticle coloration. These physiological effects are mediated by the CRZ receptor (CRZR). In order to understand the role of the CRZ-signaling pathway in Rhodnius prolixus, the cDNA sequence encoding the Rhopr-CRZR was isolated and cloned revealing two splice variants (Rhopr-CRZR-α and β). Sequence analysis revealed characteristics of rhodopsin-like GPCRs. Rhopr-CRZR-α and β were dose-dependently activated by Rhopr-CRZ with EC50 values of 2.7 and 1 nM, respectively, when tested in a functional receptor assay using CHOKI-aeq cells. Neither receptors were activated by the evolutionarily-related peptides, Rhopr-AKH, or Rhopr-ACP. For 5th instars, qPCR revealed expression of Rhopr-CRZR transcript in the CNS, the dorsal vessel, abdominal dorsal epidermis, and prothoracic glands with associated fat body. Interestingly, transcript expression was also found in the female and male reproductive tissues. Rhopr-CRZR transcript was reduced after injection of dsCRZR into adult R. prolixus. In these insects, the basal heartbeat rate was reduced in vivo, and the increase in heartbeat frequency normally produced by CRZ on dorsal vessel in vitro was much reduced. No effect of dsCRZR injection was seen on ecdysis or coloration of the cuticle

Complementarity between private and public investment in R&D: A Dynamic Panel Data analysis

This paper investigates the relationship between private and public investment in R&D, while taking into account the effect of several instruments policies such as subsidies and taxes. We design a new look of knowledge spillovers and R&D cooperation to explain the contribution of public and private R&D on growth. We propose a heterogeneous dynamic panel data model to consider the endogenous effect of R&D investment. We also distinguish between the estimated long and short run results. Our results based on a sample of 23 countries over the period 1992-2004 indicate that both public and private investments in R&D are complementary. By establishing an endogenous growth model, the estimates indicate that public and private R&D depends on the host country's human capital investment. Results indicate that foreign direct investment is a more significant spillover channel than imports.R&D investment; Technology Spillovers; Complementarities; Economic growth; Dynamic Panel Data; Cointegration; Unit root test; Private investment; Public investment; R&D cooperation

The power of trust in organizations: two studies on the importance of building trusting relationships in organizational setting

Treball Final de Grau en Administració d'Empreses. Codi: AE1049. Curs 2018-2019New forms of work require approaches and methods that generate a work climate based on trust. For this reason, this research aims to analyze first the consequences of the trust of the managers in the subordinates on variables such as participation or motivation. To this end, the data from the sixth survey "National Survey of Working Conditions" was used. The results obtained show that trust in employees improves participation and motivation processes in companies. Second, a bidirectional theoretical model is proposed which aims to analyze how trust is related to relevant variables such as innovation, the common welfare, leadership style and organizational structure. A model that shows how trust can improve the functioning of the organization and the well-being of agents. These two studies highlight the importance of building relationships of trust in organizations

A game-based design studio: An exploration of an interior design studio environment for implementing game-based learning

The design studio is an active, participatory, and experimental learning environment. Since the 19th century, the studio has been a place for learning through doing with a community of peers seeking knowledge, skills, and a space for unleashing creativity. The advancement in teaching and learning has shown to address a variety of instructional issues in a variety of fields using digital technology and innovative pedagogies. The design studio, despite its many affordances, has been criticized over the past decade for multiple reasons. This three-article dissertation focuses on using the game-based learning (GBL) pedagogy to address three instructional issues in interior design studios; time management and workload distribution, high dependency on the master-apprentice model, and ambiguity of assessment measures of student work. Each of the three articles stands as an independent piece of scholarly work. Yet all articles complement each other in multiple ways

On the increase of cutting performance of thread cutting taps with PVD coatings

Tato práce se v teoretické části zabývá procesem řezání, vlastnostmi otěruvzdorných vrstev a jejich přispívání ke zvyšování řezných vlastností. Druhou částí je část experimentální, jejichž cílem bylo zjištění, srovnání a následné vyhodnocení řezných vlastností nástrojů při řezání závitů maticovými závitníky s různými druhy PVD povlaků. Při realizaci experimentu, byly zvoleny konstantní řezné podmínky, kdy jedinou proměnou byly různé druhy povlakových vrstev. Výstupem měření bylo naměření řezného momentu v závislosti na čase a míra opotřebení řezných nástrojů.This thesis, in its theoretical part deals with the process of cutting, abrasion-resistant layers properties and their contribution to increasing of cutting properties. The second part of the thesis is experimental. It aims to determine, compare and subsequently evaluate cutting properties of threading tools using matrix taps with different types of PVD coatings. During implementation of the experiment, constant cutting conditions have been ensured and the only variable was the different types of coating layers. Outcome of the experiment is measurement of cutting torques in relation on time and rate of wear of cutting tools.