A novel admission control scheme for network slicing based on squatting and kicking strategies

New services and applications impose differentquality of service (QoS) requirements on network slicing. Tomeet differentiated service requirements, current Internet servicemodel has to support emerging real-time applications from 5Gnetworks. The admission control mechanisms are expected tobe one of the key components of the future integrated serviceInternet model, for providing multi-level service guarantees withthe different classes (slices) of services. Therefore, this paperintroduces a new flexible admission control mechanism, basedon squatting and kicking techniques (SKM), which can beemployed under network slicing scenario. From the results, SKMprovides 100% total resource utilization in bandwidth contextand 100% acceptance ratio for highest priority class underdifferent input traffic volumes, which cannot be achieved byother existing schemes such as AllocTC-Sharing model due topriority constraints.Peer ReviewedPostprint (published version

Increasing the Size of a Piece of Popcorn

Popcorn is an extremely popular snack food in the world today. Thermodynamics can be used to analyze how popcorn is produced. By treating the popping mechanism of the corn as a thermodynamic expansion, a method of increasing the volume or size of a kernel of popcorn can be studied. By lowering the pressure surrounding the unpopped kernel, one can use a thermodynamic argument to show that the expanded volume of the kernel when it pops must increase. In this project, a variety of experiments are run to test the validity of this theory. The results show that there is a significant increase in the average kernel size when the pressure of the surroundings is reduced.Comment: Latex document, 14 pages, 4 figures, 1 page of table

Pharyngeal instillation of surfactant before the first breath for prevention of morbidity and mortality in preterm infants at risk of respiratory distress syndrome

Intrapartum pharyngeal instillation of surfactant before the first breath may result in surfactant administration to the infant lung, with the potential benefit of avoiding endotracheal intubation and ventilation, ventilator induced lung injury and bronchopulmonary dysplasia. To determine the effect of pharyngeal instillation of surfactant before the first breath compared to placebo, no treatment or intratracheal surfactant administration followed by intermittent positive pressure ventilation (IPPV) on morbidity and mortality in preterm infants at risk of respiratory distress syndrome (RDS). Searches were made of CENTRAL (The Cochrane Library, to September 2010), MEDLINE and PREMEDLINE (1950 to September 2010), EMBASE (1980 to 2010) and CINAHL (1982 to 2010). This strategy was supplemented by searches of proceedings of scientific meetings, Google Scholar and reference lists of identified studies, as well as contact with expert informants and surfactant manufacturers. Published, unpublished and ongoing randomised controlled or quasi-randomised trials (using individual or cluster allocation) of pharyngeal instillation of surfactant before the first breath compared to placebo or no treatment, or intratracheal surfactant instillation followed by IPPV, on morbidity and mortality in preterm infants at risk of RDS. Two authors independently assessed study eligibility and quality. No published, unpublished or ongoing trials that met the inclusion criteria for this review were found. There were no data from randomised controlled or quasi-randomised trials that evaluated the effect of intrapartum instillation of pharyngeal surfactant before the first breath. Evidence from animal and observational human studies suggest that pharyngeal instillation of surfactant before the first breath is potentially safe, feasible and may be effective. Well designed trials are needed

INTERNACIONALIZAÇÃO DE CURSOS STRICTO SENSO: UMA INVESTIGAÇÃO SOBRE A DISTÂNCIA PSÍQUICA E AS PRÁTICAS ADOTADAS

O processo de internacionalização está cada vez mais presente nos negócios, e isto inclui as Instituições de Ensino Superior (IES). A internacionalização de IES não é recente, no entanto, cada vez mais elas vêm adotando este fenômeno, especialmente os cursos stricto senso. Objetivando verificar se a distância psíquica interfere na escolha dos parceiros envolvidos, realizou-se uma pesquisa exploratória e qualitativa com sete cursos stricto sendo de uma universidade do sul do Brasil. Os resultados revelam que a distância psíquica não é algo que determina a escolha dos países envolvidos nos processos de internacionalização, e sim, a rede de relação dos professores. A rede de relações, já enfatizada como uma forma de superar a distância psíquica por Johanson e Vahlne (2009), foi vista como um fator que realmente ajuda a minimizar a distância psíquica, gerando conhecimento aos cursos. Descobriu-se ainda, que os cursos stricto senso se inserem no mercado internacional sem ter muito conhecimento sobre ele, e aos poucos, vão adquirindo conhecimento, conforme preconizado por Johanson e Vahlne (1977). Percebeu-se ainda, que a falta de congruência entre os envolvidos no processo de internacionalização prejudica as ações dos cursos em internacionalizarem-se

The Muqawama (“Resistance”) Narrative, and its Detractors, in Contemporary Mauritania

UID/ANT/04038/2019Since 2012, when broadcasting licenses were granted to various private television and radio stations in Mauritania, the controversy around the Battle of Um Tounsi (and Mauritania’s colonial past more generally) has grown substantially. One of the results of this unprecedented level of media freedom has been the propagation of views defending the Mauritanian resistance (muqawama in Arabic) to French colonization. On the one hand, verbal and written accounts have emerged which paint certain groups and actors as French colonial power sympathizers. At the same time, various online publications have responded by seriously questioning the very existence of a structured resistance to colonization. This article, drawing predominantly on local sources, highlights the importance of this controversy in studying the western Saharan region social model and its contemporary uses.publishersversionpublishe

Binding to CSA receptor is associated with asymptomatic and mild malaria: a preliminary study using P.falciparum field isolates from Sudan

Malaria imposes great socio-economic burden on humanity, and afflicts approximately 90 countries and territories in the tropical and subtropical regions, almost one half of them are in Africa, South of Sahara. Sequestration of parasitized erythrocytes within the small vessels of vital organs is a key event in the pathogenesis of malaria and responsible of virulence of Plasmodium falciparum parasite. To find out whether the ability of infected red blood cells (IRBCs) to adhere to a specific receptor is a risk factor for developing severe clinical manifestation of the disease, in-vitro cytoadhesion and inhibition experiments were performed on field isolates obtained from five symptomatic and five asymptomatic patients inhabiting Gazira State, Central Sudan. The results showed significant lower levels (