Inovação no sector hoteleiro angolano

Mestrado em Gestão e Estratégia IndustrialObjectivo da investigação Esta investigação tem como objectivo analisar do papel dos colaboradores da linha de frente e das tecnologias de informação no processo de inovação em empresas hoteleiras. O trabalho empírico incidiu sobre os hotéis que atuam na cidade do Lubango (Angola). Metodologia A investigação baseou-se na aplicação de estudos de casos múltiplos em 3 hotéis da cidade do Lubango, em Angola. Os resultados foram obtidos através de um processo iterativo, baseado na análise da teoria disponível sobre gestão da inovação dos serviços hoteleiros, na realização de entrevistas e na reflexão sobre os resultados obtidos. Resultados A investigação realizada mostra como a inovação nos serviços hoteleiros está relacionada com o estímulo da participação e criatividade dos colaboradores da linha de frente, mediante a formação contínua e a utilização de tecnologias de informação. Implicações teóricas Os resultados obtidos são de natureza qualitativa, mostrando que a inovação a nível hoteleiro, em larga medida, tem origem na criatividade e autonomia dos colaboradores da linha de frente e no uso de tecnologias de informação, sem prejuízo da existência de outros factores relevantes, associados à capacidade da gestão de topo e à estratégia. Originalidade O estudo procura explicitar de forma clara a relação entre a inovação dos serviços hoteleiros e alguns dos principais factores de sucesso no processo de inovação.Research Objective This research is focused on the analysis of the role of front-line employees of hotels and information technologies in the innovation process in the hotel industry. The empirical work was carried out on three hotels operating in the city of Lubango (Angola). Methodology The research was based on the application of case studies in three hotels in the city of Lubango, in Angola. The results were obtained through an iterative process, based on analysis of available theory about innovation management in hotel services, on face-to-face interviews and on the reflection about the findings obtained. Results The research undertaken shows how innovation in hotel services is influenced by policies aimed at stimulating the participation and creativity of frontline employees through the lifelong learning and the use of information technologies. Theoretical implications The results are qualitative in nature, showing that innovation in the hotel industry, to a large extent, from the creativity and autonomy of frontline employees and the use of information technologies, this does not mean, however, that other factors, not addressed in the research, such as top management capabilities and strategic orientation. Originality The study seeks to explain clearly the relationship between innovation of hotel services and some of the key success factors in the innovation process

Análise do impacto das orientações estratégicas na inovação e no desempenho da hotelaria em Angola

Doutoramento em GestãoOs gestores hoteleiros são parte integrante do processo de inovação hoteleira e no consequente alcance de desempenho superior. A literatura existente sugere que as orientações estratégicas estimulam a adoção de políticas favoráveis ao processo de inovação. Esta investigação tem como objetivo investigar os impactos da orientação para o cliente, orientação para o concorrente, orientação para a aprendizagem, orientação para a tecnologia e orientação empreendedora na inovação e no desempenho hoteleiro. Os dados de 69 hotéis em quatro províncias angolanas foram analisados usando a abordagem de mínimos quadrados parciais (PLS) e análise multigrupo. Os resultados mostram que a aprendizagem e as orientações empreendedoras têm um impacto positivo na inovação hoteleira, enquanto a inovação tem um impacto positivo no desempenho. A análise multigrupo mostra diferentes categoria produzem diferentes níveis de desempenho. Os resultados sugerem que hotéis em países em desenvolvimento podem agregar valor para clientes e acionistas, através da oferta de serviços e da exploração de oportunidades de negócio. Esta é uma das poucas investigações que pesquisou o impacto da orientação estratégica na inovação hoteleira e no desempenho financeiro em países em desenvolvimento, mais concretamente em Angola.Hotel managers are an integral part of the hotel innovation process and the consequent achievement of superior performance. The existing literature suggests that strategic guidelines encourage the adoption of policies favorable to the innovation process. This investigation aims to investigate the impacts of customer orientation, competitor orientation, learning orientation, technology orientation and entrepreneurial orientation on innovation and hotel performance. Data from 69 hotels in four Angolan provinces were analyzed using the partial least squares (PLS) approach and multi-group analysis. The results show that entrepreneurial learning and guidance have a positive impact on hotel innovation. As predicted, innovation has a positive impact on performance. According to the multigroup analysis, only the hotel category has a moderating effect on performance. The results suggest that hotels in developing countries can add value for both customers and shareholders, promoting new services and exploring new business opportunities. This is one of the few studies that researched the impact of strategic orientation on hotel innovation and financial performance in developing countries, namely in Angola.info:eu-repo/semantics/publishedVersio

A prospective study of the psychobehavioral factors responsible for a change from non-patient irritable bowel syndrome to IBS patient status

<p>Abstract</p> <p>Background</p> <p>To investigate non-patient irritable bowel syndrome (IBS) change to IBS and to determine factors predictive of the onset of IBS, individual biological factors, psychological factors, behavioral factors, and environmental factors were examined.</p> <p>Methods</p> <p>The subjects were 105 non-patient IBS (male = 59, female = 46, average age:21.49 ± 2.37), including 68 of the diarrhea-predominant type and 37 of the constipation-predominant type selected from 1,409 university and technical college students by use of a questionnaire based on the Rome II diagnostic criteria. The subjects were followed for three years, and various characteristics and IBS symptoms were serially observed (12 times). The IBS incidence rate was calculated.</p> <p>Results</p> <p>During the three years, 37 non-patient IBS (35.24%) changed to IBS: 28 diarrhea-predominant type and 9 constipation-predominant type. All IBS symptoms disappeared in 26 non-patient IBS subjects (24.76%). According to quantification method II (discriminant analysis), seven factors (stressor, two kinds of stress coping styles, cognitive appraisal, eating habits, sleeping time, and psychologically abuse) were adopted as a predictive model for IBS incidence and were confirmed as predictive of IBS.</p> <p>Conclusion</p> <p>The results of this research show that non-patient IBS is a changeable state that can change into IBS or persons without symptoms. Most of the non-patient IBS subjects who became asymptomatic had had symptoms for six months or less. Furthermore, the longer a non-patient IBS subject had symptoms, the higher the risk of a change to IBS became. The findings suggest the usefulness of identifying and approaching non-patient IBS as early as possible to prevent the onset of IBS. It must be noted that the persons surveyed in the present study had only the diarrhea-predominant and constipation-predominant types. Therefore, the findings of the present study are limited only these two types. Further study including the mixed type is needed.</p

Rotation Curves of Spiral Galaxies

Rotation curves of spiral galaxies are the major tool for determining the distribution of mass in spiral galaxies. They provide fundamental information for understanding the dynamics, evolution and formation of spiral galaxies. We describe various methods to derive rotation curves, and review the results obtained. We discuss the basic characteristics of observed rotation curves in relation to various galaxy properties, such as Hubble type, structure, activity, and environment.Comment: 40 pages, 6 gif figures; Ann. Rev. Astron. Astrophys. Vol. 39, p.137, 200

H4K20me1 and H3K27me3 are concurrently loaded onto the inactive X chromosome but dispensabe for inducing gene silencing

© 2021 EMBO. This is an open access article under the terms of the Creative Commons Attribution License,which permits use, distribution and reproduction in any medium, provided the original work is properly cited.During X chromosome inactivation (XCI), in female placental mammals, gene silencing is initiated by the Xist long non-coding RNA. Xist accumulation at the X leads to enrichment of specific chromatin marks, including PRC2-dependent H3K27me3 and SETD8-dependent H4K20me1. However, the dynamics of this process in relation to Xist RNA accumulation remains unknown as is the involvement of H4K20me1 in initiating gene silencing. To follow XCI dynamics in living cells, we developed a genetically encoded, H3K27me3-specific intracellular antibody or H3K27me3-mintbody. By combining live-cell imaging of H3K27me3, H4K20me1, the X chromosome and Xist RNA, with ChIP-seq analysis we uncover concurrent accumulation of both marks during XCI, albeit with distinct genomic distributions. Furthermore, using a Xist B and C repeat mutant, which still shows gene silencing on the X but not H3K27me3 deposition, we also find a complete lack of H4K20me1 enrichment. This demonstrates that H4K20me1 is dispensable for the initiation of gene silencing, although it may have a role in the chromatin compaction that characterises facultative heterochromatin.This work was supported by Fundação para a Ciência e Tecnologia (S.T.d.R), project grants PTDC/BIA‐ MOL/29320/2017 IC&DT (A. C. R. & S.T.d.R), CEECUIND/01234/207 (S.T.d.R), and SFRH/BD/137099/2018 (A.C.R.), by an ERC Advanced Investigator award ERC‐ADG‐2014 671027 attributed to E.H., Sir Henry Wellcome Postdoctoral Fellowship (J.J.Z.), Japan Society for the Promotion of Science KAKENHI grants (JP17KK0143 and JP20K06484 to Y.S., JP19H04970, JP19H03158 and JP20H05393 to K.M., JP17K17719 to T.H., JP18H05534 to H.Ku, JP18H05527 and JP20H00456 to Y.O., JP17H01417 and JP18H05527 to H.Ki), and Japan Science and Technology Agency (JST) CREST JPMJCR16G1 to T.K., H.Ku, Y.O. and H.Ki, PREST JPMJPR2026 to K.M., and ERATO JPMJER1901 to H.Ku. J.J.Z. is supported by core funding of The Novo Nordisk Foundation Center for Stem Cell Biology (Novo Nordisk Foundation grant number NNF17CC0027852). Open Access funding enabled and organized by Projekt DEAL.info:eu-repo/semantics/publishedVersio

Necessary and sufficient conditions for path-independence of Girsanov transformation for infinite-dimensional stochastic evolution equations

Based on a recent result on linking stochastic differential equations on ℝ d to (finite-dimensional) Burger-KPZ type nonlinear parabolic partial differential equations, we utilize Galerkin type finite-dimensional approximations to characterize the path-independence of the density process of Girsanov transformation for the infinite-dimensional stochastic evolution equations. Our result provides a link of infinite-dimensional semi-linear stochastic differential equations to infinite-dimensional Burgers-KPZ type nonlinear parabolic partial differential equations. As an application, this characterization result is applied to stochastic heat equation in one space dimension over the unit interval

Search for a Technicolor omega_T Particle in Events with a Photon and a b-quark Jet at CDF

If the Technicolor omega_T particle exists, a likely decay mode is omega_T -> gamma pi_T, followed by pi_T -> bb-bar, yielding the signature gamma bb-bar. We have searched 85 pb^-1 of data collected by the CDF experiment at the Fermilab Tevatron for events with a photon and two jets, where one of the jets must contain a secondary vertex implying the presence of a b quark. We find no excess of events above standard model expectations. We express the result of an exclusion region in the M_omega_T - M_pi_T mass plane.Comment: 14 pages, 2 figures. Available from the CDF server (PS with figs): http://www-cdf.fnal.gov/physics/pub98/cdf4674_omega_t_prl_4.ps FERMILAB-PUB-98/321-

Observation of Hadronic W Decays in t-tbar Events with the Collider Detector at Fermilab

We observe hadronic W decays in t-tbar -> W (-> l nu) + >= 4 jet events using a 109 pb-1 data sample of p-pbar collisions at sqrt{s} = 1.8 TeV collected with the Collider Detector at Fermilab (CDF). A peak in the dijet invariant mass distribution is obtained that is consistent with W decay and inconsistent with the background prediction by 3.3 standard deviations. From this peak we measure the W mass to be 77.2 +- 4.6 (stat+syst) GeV/c^2. This result demonstrates the presence of two W bosons in t-tbar candidates in the W (-> l nu) + >= 4 jet channel.Comment: 20 pages, 4 figures, submitted to PR