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Although knowledge integration has been deemed relevant for the development and survival of family firms, prior studies suggest that the lack of skills to combine and transfer incumbent family members' knowledge within the family may hinder family firms' organizational effectiveness. Knowledge integration, in this context, might depend on family involvement in ownership, management and governance, and family essence, considering the emotional and relational aspects of the influence the family exerts on the business. Relying on knowledge-based view and dynamic capability perspectives, we propose a model suggesting that knowledge integration intervenes in the relationship between familiness and organizational effectiveness. Our hypotheses are tested on a sample of 102 private Spanish family businesses. The results reveal that familiness is beneficial for knowledge integration, enhancing family firms' organizational effectiveness. Our study provides practical implications for family business owners and managers, and opportunities for further research.

Producción Científica, Even though family firms are characterized by an overlap between the family and business systems, family business research has focused separately on how family firms compete (i. e., strategic behavior) and how families are involved their firms (i. e., types of family orientation). With the aim of closing this research gap, we draw on the heterogeneity principle of family firms and the equifinality principle of the configurative approach to conjecture that family firms can successfully adjust their strategic behavior and family business orientation in a variety of ways to enhance their likelihood of survival. We follow a sample of Spanish family firms over an 11-year period (2004–2015) to test our model. Based on the Kaplan–Meier survival estimator and the Cox proportional hazard model, we find that survival likelihood is higher when firms combine a differentiation strategy with a business-first or a family-enterprisefirst orientation or when firms follow a low-cost strategy with a family-first orientation.

While prior studies recognize the importance of organizational capabilities for family firm sustainability, current research has still failed to empirically identify the role of different types of knowledge accumulation with regard to these organizational capabilities. Based on the dynamic capabilities theory, the main goal of this paper is to address this research gap and to explore the relationships between both internal and external knowledge accumulation, and ordinary organizational capabilities. This research also contributes to analyzing the complex effect of the family firm essence, influenced by both family involvement and generational involvement levels, as an antecedent of internal and external knowledge accumulation. Our analysis of 102 non-listed Spanish family firms shows that the family firm essence, which is influenced by the family involvement, strengthens only the internal knowledge accumulation but not the external one. Furthermore, our study also reveals that both internal and knowledge accumulation are positively related to ordinary capabilities.

In the family firm, the process of knowledge accumulation is strongly influenced by the common history of the family, the relationships of trust, and the affective relationships between the family members that foster communication, which improves knowledge management and promotes learning. All of this leads to better organizational effectiveness in this particular group of firms. With the goal of verifying these relationships, we provide a series of propositions in order to pave the way for future studies to address and test these relationships of family involvement and essence, basic to the concept of the family firm, which should have distinct effects over the process of knowledge accumulation affecting the organizational effectiveness, behavior, and performance of the firm.

Producción Científica, Purpose –The purpose of this article is to provide a comprehensive understanding of the roots of family firms’ competitive advantages by defining and testing the familiness learning mechanisms that emerge from the interaction between family and firm. Because family members are economically, emotionally and socially attached to the firm, family firms are expected to be able to develop unique and difficult to imitate learning mechanisms related to family firm value creation. Design/methodology/approach – This study operationalizes and tests the concept of the familiness learning mechanism using a sample of nonlisted Spanish family firms. The sample is analyzed using the structural equation modeling method. Findings – Results show that family firms’ ability to accumulate internal and external knowledge, integrate social knowledge, as well as create and retain socioemotional knowledge forms the concept of the familiness learning mechanism, and the authors show what implications it might have for family firm value creation. Originality/value – By using the dynamic capabilities approach, this article highlights the importance of the knowledge and learning derived from family involvement in the firm. The creation of learning mechanisms occurs because of the close relationships between family members and their simultaneous participation in the family and in the company systems, which creates a unique context wherein knowledge and learning emerge in an idiosyncratic manner, Ministerio de ciencia e Innovación español (Programa Estatal de Fomento de la Investigación científica y técnica de excelencia) (ECO2016-78128-P)

Producción Científica, La riqueza socioemocional se relaciona con las dotaciones emocionales que la familia acumula en la empresa. Es una de las características más importantes que diferencian a las empresas familiares de otros tipos de organizaciones. Sin embargo, existen pocos estudios desarrollados en el contexto de los antecedentes y consecuencias de la creación y uso de la riqueza socioemocional en la empresa familiar. Por tanto, en este estudio, utilizando una muestra de empresas familiares espanolas ˜ que no cotizan en bolsa, se explica cómo la influencia familiar afecta la creación y uso de la riqueza socioemocional y, de este modo, a la efectividadorganizativa de la empresa familiar. Los resultados indican resultados mixtos con respecto al impacto de la participación familiar en la esencia de la empresa familiar. Además, sugieren una relación positiva entre la creación y uso de la riqueza socioemocional y la efectividad organizativa de la empresa familiar

Relationship conflicts between family members can have disastrous consequences on the performance of the family firm (FF) and even endanger its continuity. This study examines the relationship between family influence, relationship conflicts, and the organizational effectiveness of FF. Using a sample of 102 Spanish FFs, the authors analyzed the data using a partial least squares structural equation model. The results show that the involvement of family members in the ownership and on the boards of governance and management enhance the incorporation of the family values and culture into the firm and thus reduce relationship conflicts. More importantly, we find a negative relation between relationship conflicts and the effectiveness of FF.

Previous research emphasizes that the participation of the family in business operations is the source of resources and capabilities that conditions the strategic behavior of the family firm. This influence has been recognized as “familiness.” However, this definition is contextualized from static reasoning that ignores the effect of family dynamics on the behavior and value generation of the family-owned business. Prior literature has recognized that the family influence has a dynamic character based on the idiosyncratic process of knowledge management that manifests itself in the company, dynamic familiness. This family capability is shaped by family organizational routines through the family influence and aims to increase its knowledge portfolios for the strategic use of its resources. This chapter addresses the relationship between family influence and the process of learning and knowledge management. The analysis of this relationship allows assessing how family influence can promote the generation of family organizational routines based on knowledge management processes.

A key issue of family firms’ strategic management is to determine the factors that are specific to family firms. Despite theoretical and empirical progress in understanding the mechanisms behind strategic decision making in family firms, there is still no strategic management theory for family firms. To address this gap, we adapt the dynamic capabilities approach to family firms by developing a theoretical model that attempts to serve as a framework for helping family firms in the strategic decision making process. The model is based on the concept of familiness and family learning mechanisms (knowledge accumulation, integration, codification and socioemotional wealth preservation) suggesting that the interplay of the two impacts on the efficient strategic management of family firms. Theoretical and practical implications are discussed.

Succession is a concern for most family firms. The literature has addressed succession in family firms from different perspectives. However, there are still unaddressed questions concerning the microfoundations of succession, and there is a need to secure a better understanding of the succession process and what role parents play therein. Using the dynamic capabilities approach, we shed light on the influence of parents&rsquo, behaviors on successors&rsquo, intentions. In particular, the paper pursues a twofold aim, first, to analyze the effect of learning mechanisms that parents deliberately use with their children in the family firm on the succession dynamic capability, and second, to explore the impact of this dynamic capability of successor intention to continue in the family firm. We test the model on a sample of potential successors of family firms in Spain. Using partial least squares (PLS) for a sample of 9146 individuals, we confirm the positive impact of the use of parents&rsquo, deliberate learning mechanisms on succession dynamic capability and, in turn, the positive effect of the created succession dynamic capability on the successor&rsquo, s intention to continue the family firm. Furthermore, we find that perceived self-efficacy fails to have any effect on successor intention.

This study aimed to evaluate the effects of three solvent extractors (water, ethanol and hexane) of grounded seeds of soursop, Annona muricata L. (Annonaceae), in the mortality, biology and oviposition of Plutella xylostella L. (Lepidoptera: Plutellidae). The results showed that the LC50 and LC99 were 0.0133 and 0.084%, 0.025% and 0.196%, 2.33 and 35.22% for the ethanolic, hexanic and aqueous extracts, respectively. The organic extracts affected only the larval phase and reduced viability in more than 60%, but did not affect pupal stage of the remaining larvae. Furthermore, the ethanolic extract at lethal concentration also affected negatively the embryonic phase. The results lead to the conclusion that the ethanolic extract of soursop grounded seeds is a viable alternative to control diamondback moth on vegetables. O presente trabalho teve como objetivo avaliar o efeito de extratos de sementes de graviola, Annona muricata L. (Annonaceae) obtidos com diferentes solventes sobre Plutella xylostella L. (Lepidoptera: Plutellidae). Foram estimadas as concentrações letais de três solventes extratores (água, hexano e etanol) e seus efeitos na biologia e oviposição. Os valores estimados das concentrações letais foram de 0,013 e 0,084%; 0,025 e 0,196%; 2,33 e 35,22%, para as CL50 e CL99 do extrato etanólico, hexânico e aquoso, respectivamente. Os extratos orgânicos afetaram apenas a fase larval e reduziu a viabilidade em mais de 60%, mas não afetou a fase pupal das lagartas remanescentes. Além disso, o extrato etanólico na concentração letal se mostrou eficiente afetando negativamente a fase embrionária. Conclui-se que o extrato etanólico da graviola é uma alternativa viável no controle da traça.

Producción Científica, El conocimiento es la fuente más importante de ventaja competitiva sostenible de una empresa. La acumulación de conocimiento es la base del proceso de gestión del conocimiento y un mecanismo de aprendizaje organizacional fundamental. Promueve el desarrollo de las rutinas organizativas, proporcionando los fundamentos para la generación de capacidades dinámicas y la efectividad organizativa. Este proceso en la empresa familiar está fuertemente influenciado por la historia común, la confianza y apego emocional de los miembros familiares, que favorecen su comunicación y el desarrollo de procesos de gestión del conocimiento y aprendizaje idiosincrásicos. Este estudio se centra en el estudio de la relación entre los recursos familiares (familiness), acumulación de conocimiento y la efectividad organizativa. Con el objetivo de verificar esta relación utilizamos una muestra de 102 empresas familiares españolas que no cotizan en bolsa. Los datos fueron evaluamos mediante Partial Least Squares (PLS). Los resultados sugieren que los componentes de participación y esencia tienen distintos efectos sobre el proceso de acumulación de conocimiento. Además, proponen una relación directa y positiva entre la acumulación de conocimiento y la efectividad organizativa en la empresa familiar

The aim of this study was to evaluate the bioactivity of microencapsulated extract from the soursop seeds, Annona muricata L. ( Annonaceae ), on diamondback moth, Plutella xylostela L. (Lepidoptera: Plutellidae ). Microencapsulation was performed in a Mini Spray Dryer model B-290 using 50mL of ethanolic and hexanic extracts plus 150mL of ethanol and 150mL of ultrapure water, mixed with aerosil (first polymer) or arabic gum (second polymer). It was possible to microencapsulate the ethanolic extract of soursop seeds only by using the polymer arabic gum at 20%. The microencapsulated extract caused significant acute toxicity (LC50=258mg L-1) and chronic effects, especially reduction of larval viability and increased larval stage. We concluded that the microencapsulation of the ethanolic extract of soursop seeds can be a viable alternative for controlling diamondback moth with possible gains for the environment. RESUMO: O objetivo deste estudo foi avaliar a bioatividade do extrato microencapsulado das sementes de graviola, Annona muricata L. ( Annonaceae ), sobre a traça-das-crucíferas, Plutella xylostella L. (Lepidoptera: Plutellidae ). A microencapsulação foi realizada em um Mini Spray Dryer modelo B-290 utilizando-se 50mL dos extratos etanólico e hexânico mais 150mL de álcool etílico e 150mL de água ultrapurificada, misturado com aerosil (primeiro polímero) ou com goma arábica (segundo polímero). Só foi possível microencapsular o extrato etanólico de sementes de graviola com a utilização do polímero goma arábica a 20%. O extrato microencapsulado causou significativa toxicidade aguda (CL50=258mg L-1) e efeitos crônicos, especialmente redução da viabilidade larval e aumento da duração do estágio larval. Conclui-se que a microencapsulação do extrato etanólico da semente de graviola pode ser uma alternativa viável no controle da traça com possíveis ganhos para o meio ambiente.

Different propagation techniques for cultivation of vegetative Gigartina skottsbergii fronds were tested using a system of suspended ropes, to which inoculants were attached. Our results showed that triangular fragments obtained from the circular G. skottsbergii thalli produced harvestable frond of 800 cm2 after 8 months. In contrast, inoculants of intact juvenile fronds of comparable size needed at least 10 months to reach the same size. A control experiment with spores developing on an artificial substrate showed that 20 months were needed to reach a surface of 500 cm2, confirming the superiority of our fragment culture system. A pilot study demonstrated that with a density of six fronds m−1 of farming line, the proposed system can be economically interesting for local fishermen.

Aqueous extracts of neem, Azadirachta indica A. Juss., leaf and seed cake were tested for toxicity in Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) utilizing different methods of application (foliar and systemic). Probit analysis was used to determine the LC50 and regression analysis for mortality at different concentrations of the extracts (0.5%, 1.0%, 1.5%, 2.0% and control treatment). Two caterpillar morphometric variables (larval length and cephalic capsule width) and the scale of damage of attacked plants were measured and, analyzed using the Kruskal-Wallis test (P, Aqueous extracts of neem, Azadirachta indica A. Juss., leaf and seed cake were tested for toxicity in Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) utilizing different methods of application (foliar and systemic). Probit analysis was used to determine the LC50 and regression analysis for mortality at different concentrations of the extracts (0.5%, 1.0%, 1.5%, 2.0% and control treatment). Two caterpillar morphometric variables (larval length and cephalic capsule width) and the scale of damage of attacked plants were measured and, analyzed using the Kruskal-Wallis test (H=16.93; P=0.0304). The LC50 values for neem seed cake and leaves were 0.13% and 0.25%, respectively. For larval length and cephalic capsule width, the larvae were more affected to the seed cake extract than leaf extract, however there was no significant difference between the methods of application for these variables. There was no difference in the scale of damage by the extracts and the methods of application analyzed. Both methods of application provided similar results and, the main differences were associated with more efficient of the seed cake extract.

Os surtos de raiva em humanos transmitida por Desmodus rotundus em 2004 e 2005 no nordeste do estado do Pará, Brasil, Amazônia Oriental, fizeram desta uma área prioritária para estudos sobre essa zoonose. Diante disso, o presente estudo fornece dados sobre esse fenômeno em contexto urbano, afim de avaliar uma possível circulação do vírus clássico da raiva (RABV) entre espécies de morcegos em Capanema, cidade localizada na bacia Amazônica. Os morcegos foram coletados em 2011, com auxílio de redes de espera durante as estações seca e chuvosa. Amostras de encéfalo e de sangue foram coletadas para o diagnóstico virológico e sorológico, respectivamente. Das 153 amostras de encéfalo analisadas, nenhuma encontrou-se positiva para infecção pelo RABV, porém, 50,34% (95% CI: 45,67-55,01) das amostras de soro analisadas estavam soropositivas. Artibeus planirostris foi a espécie mais comum, e seu percentual de indivíduos soropositivos foi bem elevado (52.46%, 95% CI: 52,31-52,60). Porções estatisticamente iguais de soropositivos foram registrados nas estações (c2 = 0,057, d.f. = 1, p = 0,88). Uma porção significativamente elevada de machos (55,96%, 95% CI: 48,96%-62,96%), e adultos (52,37%, 95% CI: 47,35%-57,39%) foram soropositivos. Apesar de nenhuma das amostras de encéfalo terem sido positivas para raiva, a alta proporção de espécimes soropositivos indica uma possível circulação do RABV nessa área urbana. The outbreaks of rabies in humans transmitted by Desmodus rotundus in 2004 and 2005, in the northeast of the Brazilian State of Para, eastern Amazon basin, made this a priority area for studies on this zoonosis. Given this, the present study provides data on this phenomenon in an urban context, in order to assess the possible circulation of the classic rabies virus (RABV) among bat species in Capanema, a town in the Amazon basin. Bats were collected, in 2011, with mist nets during the wet and dry seasons. Samples of brain tissue and blood were collected for virological and serological survey, respectively. None of the 153 brain tissue samples analyzed tested positive for RABV infection, but 50.34% (95% CI: 45.67-55.01%) of the serum samples analyzed were seropositive. Artibeus planirostris was the most common species, with a high percentage of seropositive individuals (52.46%, 95% CI: 52.31 52.60%). Statistically, equal proportions of seropositive results were obtained in the rainy and dry seasons (c2 = 0.057, d.f. = 1, p = 0.88). Significantly higher proportions of males (55.96%, 95% CI: 48.96-62.96%) and adults (52.37%, 95% CI: 47.35-57.39%) were seropositive. While none of the brain tissue samples tested positive for infection, the high proportion of seropositive specimens indicates that RABV may be widespread in this urban area. COSTA, L. J. C. Dra. Docente da Universidade Federal do Pará, Campus Bragança FERNANDES, M. E. B. r. Dr. Docente da Universidade Federal do Pará, Instituto de Estudos Costeiros, Campus Universitário de Bragança