Scientific Production about Resource-Constrained Project Scheduling Problem: A Bibliometric and Bibliographic Study

Um dos principais problemas de alocação de recursos humanos na execução de projetos está associado ao Resource-Constrained Project Scheduling Problem. Nesse contexto, este artigo tem como objetivo apresentar um cenário sobre a produção acadêmica sobre o tema, apresentando os autores clássicos, as revistas científicas com maiores publicações, os constructos mais utilizados, as áreas de interesses mais referenciadas e as obras mais recentes dos autores com maior número de publicações no tema. Os resultados demonstram que o tema se mantém relevante além de permitir identificar os pontos que ainda podem ser explorados por novos autores. One of the major problems of human resource allocation in project execution is associated with the Resource-Constrained Project Scheduling Problem. In this context, this article aims to present a scenario about the academic production on the topic, presenting the classic authors, the scientific journals with the largest publications, the most used constructs, the most referenced areas of interest and the most recent works of the authors with Number of publications in the theme. The results show that the theme remains relevant as well as identifying the points that can still be explored by new authors

Fator natriurético atrial: ele é o responsável pela hiponatremia e natriurese em neurocirurgia?

To evaluate the presence of hyponatremia and natriuresis and their association with atrial natriuretic factor in neurosurgery patients. Methods: The study included 30 patients who had been submitted to intracranial tumor resection and cerebral aneurism clipping. Both plasma and urinary sodium and plasma atrial natriuretic factor were measured during the preoperative and postoperative time periods. Results: Hyponatremia was present in 63.33% of the patients, particularly on the first postoperative day. Natriuresis was present in 93.33% of the patients, particularly on the second postoperative day. Plasma atrial natriuretic factor was increased in 92.60% of the patients in at least one of the postoperative days; however, there was no statistically significant association between the atrial natriuretic factor and plasma sodium and between the atrial natriuretic factor and urinary sodium. Conclusion: Hyponatremia and natriuresis were present in most patients after neurosurgery; however, the atrial natriuretic factor cannot be considered to be directly responsible for these alterations in neurosurgery patients. Other natriuretic factors are likely to be involved282154160FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP00/05990-9Avaliar a presença de hiponatremia e natriurese, bem como suas associações com o fator natriurético atrial em pacientes de neurocirurgia. Métodos: Foram incluídos 30 pacientes submetidos à ressecção de tumor intracraniano e à clipagem de aneurisma cerebral. Os níveis plasmáticos e urinários de fator natriurético atrial foram medidos durante os períodos pré e pós-operatório. Resultados: Hiponatremia esteve presente em 63,33% dos pacientes, particularmente no primeiro dia pós-operatório. Observou-se natriurese em 93,33% dos pacientes, principalmente no segundo dia pós-operatório. Os níveis plasmáticos de fator natriurético atrial estavam aumentados em 92,60% dos pacientes em pelo menos um dos dias pós-operatórios, mas não houve associação estatisticamente significante entre fator natriurético atrial e sódio plasmático, e entre fator natriurético atrial e sódio urinário. Conclusão: Após neurocirurgia, na maior parte dos pacientes, estiveram presentes hiponatremia e natriurese; contudo, o fator natriurético atrial não pôde ser considerado diretamente responsável por tais alterações nos pacientes neurocirúrgicos. Provavelmente, há o envolvimento de outros fatores natriurético

GERMINAÇÃO DE SEMENTES DE MUCUNA-PRETA SUBMETIDAS A DIFERENTES PERÍODOS DE ARMAZENAMENTO

A Stizolobium aterrimum (mucuna-preta) é uma das espécies utilizada como adubo verde na renovação de canaviais. Entretanto, com a adoção de colheita mecanizada de cana crua, esta espécie, por apresentar padrão de germinação escalonado das sementes tem dificultado o manejo. Neste contexto, com o presente trabalho objetivou-se de avaliar a germinação e a presença de fitopatógenos de sementes de mucuna-preta, intactas e escarificadas mecanicamente armazenadas por 0, 4, 12 e 16 meses após a colheita. O teste de germinação foi realizado com papel para germinação e em câmaras BOD com fotoperíodo de 18 horas e 27oC, sendo as avaliações das sementes germinadas realizadas diariamente após o terceiro dia. O delineamento experimental utilizado foi o de blocos casualizados, em arranjo fatorial 2 tratamentos x 4tempos de armazenagem com 4 repetições e 50 sementes por repetição. Os resultados observados indicam que sementes intactas demonstraram um aumento do número de sementes germinadas e conseqüentemente da percentagem de germinação à medida que o tempo de armazenamento foi aumentado. Para sementes escarificadas, ocorreu uma diminuição do número de sementes germinadas e da percentagem de germinação à medida que o tempo de armazenamento foi aumentado. Dessa forma conclui-se que sementes de mucuna-preta não escarificadas possuem um aumento do potencial daninho devido a maior capacidade de germinação adquirida pelas sementes ao longo do armazenamento e que a escarificação mecânica das sementes diminuem esse potencial

Incontinentia pigmenti presenting as hypodontia in a 3-year-old girl: a case report

<p>Abstract</p> <p>Introduction</p> <p>Incontinentia pigmenti or Bloch-Sulzberger syndrome is a rare X-linked dominant disease that mainly affects the skin, eyes, hair, central nervous system and teeth. The disease is predominant among women. Although dermatologic manifestations are among the most important aspects for the diagnosis of the syndrome, they are less damaging to the patient and do not require treatment. However, oral involvement characterized by hypodontia of deciduous and permanent teeth is important for the diagnosis and treatment of the patient.</p> <p>Case presentation</p> <p>We report the case of a 3-year-old girl with ophthalmologic and neurologic disturbances, cutaneous manifestations and hypodontia. Since the patient did not present more damaging manifestations such as neurologic and/or ophthalmologic problems, her most severe complications were related to dental anomalies. The importance of integrated dental treatment, which combines pediatric dentistry, orthodontics and conventional prosthesis, is emphasized.</p> <p>Conclusion</p> <p>Hypodontia is a frequent finding in incontinentia pigmenti, and dentists should be aware of this condition in order to help with the diagnosis.</p

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost