Towards A National Agribusiness System: A Conceptual Framework

This paper examines today's challenges to the agribusiness sector. Through the Resource-Based View approach, we explore the potential roles and linkages between national public policies and local strategies in order to enhance the competitiveness and sustainability of a national agribusiness system. The main goal is to achieve a strategic alignment between the actions of multiple stakeholders, like firms, research centers, consumers, government, and the society in general. The essence of the paper is synthesized in a framework, which highlights the need for coordination of agribusiness systems by a National Strategy.Agribusiness,

COMPLICAÇÕES E MANEJO DO ACRETISMO PLACENTÁRIO: UMA REVISÃO INTEGRATIVA

Introduction: Placental accreta is a severe and complex obstetric condition that is becoming more common due to the increase in cesarean sections and other uterine interventions. This condition occurs when the placenta adheres abnormally to the uterine muscle, varying in severity as placenta accreta, increta, and percreta. It can cause serious complications, such as heavy bleeding and the need for a hysterectomy. Early diagnosis, made by ultrasound and magnetic resonance imaging, is crucial for proper management. The increased incidence is linked to risk factors such as previous cesarean sections, multiparity, advanced maternal age, and a history of uterine curettage. Methodology: Ten relevant scientific articles were selected, published in Portuguese, English and Spanish, found in databases such as PubMed, SciELO and Google Scholar, using terms such as "placental accreta", "diagnosis", "clinical management" and "complications". Original studies, systematic reviews, and case reports on the diagnosis, management, and complications of placental accreta were included, excluding studies with non-human populations, non-full-text articles, and publications prior to 2010. Results: The integrative review resulted in the selection of ten relevant scientific articles that address the management and complications of placental accreta. The main topics include diagnosis, clinical management and treatment, with emphasis on medical management and the multidisciplinary team. The most frequent complications identified were postpartum hemorrhage, need for hysterectomy, and damage to other organs. The introduction of multidisciplinary teams and new surgical techniques has been shown to be effective in reducing maternal morbidity. Conclusions: The creation of specialized teams has been shown to be effective in reducing maternal morbidity in severe cases. Major complications, such as postpartum hemorrhage and the need for hysterectomy, can be better managed with proper planning and timely interventions. Diagnostic tools, such as ultrasound and magnetic resonance imaging, are essential for early detection. The implementation of protocols and new surgical techniques has also shown promise. However, there is a need for further studies with larger samples to consolidate the evidence and improve management strategies for this complex condition.Introduction: Placental accreta is a severe and complex obstetric condition that is becoming more common due to the increase in cesarean sections and other uterine interventions. This condition occurs when the placenta adheres abnormally to the uterine muscle, varying in severity as placenta accreta, increta, and percreta. It can cause serious complications, such as heavy bleeding and the need for a hysterectomy. Early diagnosis, made by ultrasound and magnetic resonance imaging, is crucial for proper management. The increased incidence is linked to risk factors such as previous cesarean sections, multiparity, advanced maternal age, and a history of uterine curettage. Methodology: Ten relevant scientific articles were selected, published in Portuguese, English and Spanish, found in databases such as PubMed, SciELO and Google Scholar, using terms such as "placental accreta", "diagnosis", "clinical management" and "complications". Original studies, systematic reviews, and case reports on the diagnosis, management, and complications of placental accreta were included, excluding studies with non-human populations, non-full-text articles, and publications prior to 2010. Results: The integrative review resulted in the selection of ten relevant scientific articles that address the management and complications of placental accreta. The main topics include diagnosis, clinical management and treatment, with emphasis on medical management and the multidisciplinary team. The most frequent complications identified were postpartum hemorrhage, need for hysterectomy, and damage to other organs. The introduction of multidisciplinary teams and new surgical techniques has been shown to be effective in reducing maternal morbidity. Conclusions: The creation of specialized teams has been shown to be effective in reducing maternal morbidity in severe cases. Major complications, such as postpartum hemorrhage and the need for hysterectomy, can be better managed with proper planning and timely interventions. Diagnostic tools, such as ultrasound and magnetic resonance imaging, are essential for early detection. The implementation of protocols and new surgical techniques has also shown promise. However, there is a need for further studies with larger samples to consolidate the evidence and improve management strategies for this complex condition.Introdução: O acretismo placentário é uma condição obstétrica grave e complexa que está se tornando mais comum devido ao aumento das cesarianas e outras intervenções uterinas. Esta condição ocorre quando a placenta adere anormalmente ao músculo uterino, variando em gravidade como placenta acreta, increta e percreta. Ela pode causar complicações sérias, como hemorragias intensas e a necessidade de histerectomia. O diagnóstico precoce, feito por ultrassonografia e ressonância magnética, é crucial para um manejo adequado. O aumento da incidência está ligado a fatores de risco como cesarianas anteriores, multiparidade, idade materna avançada e histórico de curetagem uterina. Metodologia: Foram selecionados dez artigos científicos relevantes, publicados em português, inglês e espanhol, encontrados em bases de dados como PubMed, SciELO e Google Scholar, usando termos como "acretismo placentário", "diagnóstico", "manejo clínico" e "complicações". Incluíram-se estudos originais, revisões sistemáticas e relatos de casos sobre o diagnóstico, manejo e complicações do acretismo placentário, excluindo estudos com populações não humanas, artigos sem texto completo e publicações anteriores a 2010. Resultados: A revisão integrativa resultou na seleção de dez artigos científicos relevantes que abordam o manejo e as complicações do acretismo placentário. Os principais temas incluem diagnóstico, manejo clínico e tratamento, com ênfase na conduta médica e da equipe multiprofissional. As complicações mais frequentes identificadas foram hemorragia pós-parto, necessidade de histerectomia e lesões a outros órgãos. A introdução de equipes multidisciplinares e novas técnicas cirúrgicas mostrou-se eficaz na redução da morbidade materna. Conclusões: A criação de equipes especializadas mostrou-se eficaz na redução da morbidade materna em casos graves. As principais complicações, como hemorragia pós-parto e necessidade de histerectomia, podem ser melhor gerenciadas com planejamento adequado e intervenções oportunas. Ferramentas diagnósticas, como ultrassonografia e ressonância magnética, são essenciais para a detecção precoce. A implementação de protocolos e novas técnicas cirúrgicas também se mostrou promissora. No entanto, há necessidade de mais estudos com amostras maiores para consolidar as evidências e aprimorar as estratégias de manejo dessa condição complexa

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements