Unemployment and entrepreneurship: a cyclical relationship?

This paper presents a cyclical model for unemployment and entrepreneurship. The estimated periodicity of the cycles for the US, the UK, Spain and Ireland is between 5 and 10 years, and the orders of integration are smaller (greater) than 1 if the underlying disturbances are autocorrelated (white noise), corresponding to dampen cycles (limit cycle).New firms, Employment creation, cycles.

Persistence on airline accidents

This paper analyses airline accidents data from 1927-2006. The fractional integration methodology is adopted. It is shown that airline accidents are persistent and (fractionally) cointegrated with airline traffic. Thus, there exists an equilibrium relation between air accidents and airline traffic, with the effect of the shocks to that relationship disappearing in the long run. Policy implications are derived for countering accidents events.

Persistence in Airline Accidents

This paper analyses airline accident data from 1927-2006, through fractional integration. It is shown that airline accidents are persistent and (fractionally) cointegrated with airline traffic. There exists a negative relation between air accidents and airline traffic, with the effect of the shocks to that relationship disappearing in the long run. Policy implications are derived for countering accident events.Accidents; airline; Time series; Persistence; Long memory; Cointegration.

Neonatal Appendicitis – an Uncommon Diagnosis, not to be Forgotten

Acute appendicitis is a common disease in older children, but extremely rare in the neonate. Nevertheless, the true incidence might be underestimated, given the difficulty of the diagnosis. Subtle clinical signs and symptoms usually result in high morbidity and mortality due to delayed diagnosis and surgical intervention. The presentation of neonatal appendicitis can be identical to necrotizing enterocolitis, leading to misdiagnosis. Appendicitis should therefore be considered in the differential diagnosis for necrotizing enterocolitis and needs strong clinical suspicion. We report a case of a premature newborn who presented with vomiting, abdominal distension and free intra-peritoneal air on plain x-ray. He was initially diagnosed and treated as necrotizing enterocolitis, but the absence of clinical improvement with standard treatment led to exploratory laparotomy. Surgical exploration revealed an acutely inflamed appendix with normal small and large intestines and appendectomy was performed. The post-operatory period was uneventful and the infant was discharged home. Follow-up confirmed a normal growth and neurodevelopment. We herein report this case in order to raise awareness to this unusual pathology, so that an early diagnosis and treatment can lead to a better outcome, improving survival rate and reducing long term morbidity. We believe uncommon pathologies, like neonatal appendicitis, should be reported to facilitate proper epidemiologic studies

Desarrollo ontogénico de Parablennius pilocornis (Pisces: Blenniidae) en condiciones controladas

The full developmental sequence from egg to juvenile of Parablennius pilicornis in controlled conditions is described. Embryonic development lasted 9 days at 18.0 to 21.0°C, 14 days at 17.0 to 20.0°C, 16 days at 16.0 to 19.0°C and 17 days at 14.0 to 18.5°C. Newly hatched larvae measured 3.1 mm total length (TL), had the mouth and anus open, pigmented eyes, almost no yolk, and the pectoral fins were small and unpigmented. Most larvae settled between day 66 and 69 after hatching (27.0 mm TL) and showed full juvenile pigmentation patterns between day 91 and 93 (30.0 mm TL). However, on day 61/62 after hatching (when they were more than 25.0 mm) they began to show a complex agonistic repertoire.La secuencia de desarrollo, desde el huevo hasta el estadio juvenil, de Parablennius pilicornis se describe en condiciones controladas. La duración del desarrollo embrionario fue de 9 días a 18.0-21.0ºC, 14 días a 17.0-20.0ºC, 16 días a 16.0-19.0ºC y 17 días a 14.0-18.5ºC. La talla de las larvas en el momento de la eclosión era de 3.1 mm TL, la boca y el ano ya estaban abiertos, los ojos pigmentados, prácticamente sin vitelo y las aletas pectorales pequeñas y sin pigmentación. El asentamiento, en la mayor parte de las larvas, tuvo lugar entre el día 66-69 después de la eclosión (27.0 mm TL) y mostraban el patrón de pigmentación característico de de la fases juvenil entre el día 91-93 (30.0 mm TL). No obstante, a partir del día 61-62 después de la eclosión (TL> 25.0 mm) empezaban a mostrar un repertorio agonístico complejo.

Hospitality in women’s wear retail in São Paulo City

This article investigates the relationship between seller and customer in retail women’s wear business in São Paulo, considering hospitality driven strategies adopted by it. It is assumed that in this segment people tend to play different roles according to common patterns of behavior, and that hospitality issues add a lot to what is already established as standard sales procedures. As relationships are increased, significant links are created, revealing different motives involving hospitality. A qualitative approach to in-depth semi-structured interviews was used. Owners, managers, sellers and customers were interviewed. Content analysis was used for data evaluation, adding hospitality elements to business such as consideration, concern, compassion and desire to please, which were identified as a significant asset among the sources.Keywords: Hospitality, fashion retail, seller, customer, actin

Asymptotic Behaviour for a Class of Non-monotone Delay Differential Systems with Applications

The paper concerns a class of n-dimensional non-autonomous delay differential equations obtained by adding a non-monotone delayed perturbation to a linear homogeneous cooperative system of ordinary differential equations. This family covers a wide set of models used in structured population dynamics. By exploiting the stability and the monotone character of the linear ODE, we establish sufficient conditions for both the extinction of all the populations and the permanence of the system. In the case of DDEs with autonomous coefficients (but possible time-varying delays), sharp results are obtained, even in the case of a reducible community matrix. As a sub-product, our results improve some criteria for autonomous systems published in recent literature. As an important illustration, the extinction, persistence and permanence of a non-autonomous Nicholson system with patch structure and multiple time-dependent delays are analysed.Ministerio de Economía, Industria y Competitividad /FEDER (MTM2015-66330)Fundaçao para a Ciencia e a Tecnologia under project UID/MAT/-04561/201

Characterization of nutritional, physicochemical, and phytochemical composition and antioxidant capacity of three strawberry “Fragaria X ananassa Duch.” Cultivars (“Primoris”, “Endurance”, and “Portola”) from western region of Portugal

In this study, nutritional composition (protein, lipids, carbohydrates, ash, and moisture), physicochemical properties (soluble solid content, titratable acidity, texture and instrumental colour on surface, and internal section), phytochemicals (total phenolic content and anthocyanin content), and antioxidant capacity (DPPH—2,2'-diphenyl-1-picrylhydrazyl radical scavenging capacity and ferric-reducing antioxidant power) of three strawberry (Fragaria X ananassa Duch.) cultivars (cv. “Primoris”, cv. “Endurance”, and cv. “Portola”) produced in the western region of Portugal (Caldas da Rainha) were evaluated. From the obtained, results no significant differences (P > 0.05) in nutritional composition were detected in all of the cultivars; with the exception of lower protein content observed in cv. “Portola” (0.57 g/100 g +- 0.04; P 0.05) were found in any of the cultivars, which revealed a similar redness. The cv. “Endurance” revealed the highest bioactivity content compared to the other cultivars. Overall, these results provide important information about the high quality of strawberry produced in the western region of Portugal and may be used as a tool for adding value to a functional food in the Mediterranean diet due to the phytochemical composition and nutritional value of strawberry fruits.info:eu-repo/semantics/publishedVersio

Self-employment by gender in the EU: convergence and clusters

[Abstract]: This paper studies the convergence of self-employment by gender in the European Union, through tests for the order of integration and cluster analysis, in order to investigate the occurrence of two types of convergence: between genders and among European countries. The paper makes two contributions to the literature: 1) theoretically, it provides useful insights into the macroeconomic determinants of self-employment; 2) methodologically, it uses unit roots, fractional integration and cluster analysis to assess convergence. The empirical results point at mixed evidence of convergence, but with clear differences between the core and the periphery of Europe.Juan Carlos Cuestas acknowledges the financial support from the MINEIC-AEIFEDER ECO2017-85503-R and ECO2017-83255-C3-3-P projects both of them from ‘Ministerio de Economía, Industria y Competitividad’ (MINEIC), `Agencia Estatal de Investigación’ (AEI) Spain and `Fondo Europeo de Desarrollo Regional’ (FEDER), and the UJI project UJI-B2019-15. The first of these projects is also acknowledged by Luis A. Gil-Alana.info:eu-repo/grantAgreement/MINEIC- AEI-FEDER/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/ ECO2017-85503-R/ES/info:eu-repo/grantAgreement/MINEIC- AEI-FEDER/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/ ECO2017-83255-C3-3-P/ES/Universitat Jaume I; UJI-B2019-1

Self-employment by gender in the EU: convergence and clusters

This paper studies the convergence of self-employment by gender in the European Union, through tests for the order of integration and cluster analysis, in order to investigate the occurrence of two types of convergence: between genders and among European countries. The paper makes two contributions to the literature: (1) theo-retically, it provides useful insights into the macroeconomic determinants of self-employment; (2) methodologically, it uses unit roots, fractional integration and clus-ter analysis to assess convergence. The empirical results point at mixed evidence of convergence, but with clear differences between the core and the periphery of Europe