Yield responses to ethephon for unshaken and mechanically shaken macadamia

Ethephon promotes fruit abscission and accelerates harvest of macadamia, Macadamia integrifolia (Proteaceae), but has limited use due to concerns that associated abscission of inner-canopy leaves may reduce subsequent yield and nut quality. Yield and quality were monitored for 2 years following ethephon application to both unshaken and mechanically shaken trees of the late-abscising cultivar, A16. Nut quality was not adversely affected in subsequent seasons, but effects on yield varied. In 3 of 6 experiments, ethephon reduced yield in the year after application. However, in 4 of the 6 experiments, 2 years of ethephon application greatly elevated yield in the third year. This was not a compensating recovery from low second-year yield, as third-year yield of trees that received only 1 ethephon treatment did not differ from yield of control trees. Ethephon-assisted harvest remains feasible for macadamia, although further work is warranted given the potential risks and considerable benefits for subsequent yield. Inner canopy defoliation, resulting from ethephon use, could represent a canopy management technique for dense-canopy fruit trees.

Physiological responses to repeated bouts of high-intensity ultraendurance cycling - a field study case report

The present study aimed to 1) examine the relationship between laboratory-based measures and high-intensity ultraendurance (HIU) performance during an intermittent 24-h relay ultraendurance mountain bike race (similar to20 min cycling, similar to60min recovery), and 2) examine physiological and performance based changes throughout the HIU event. Prior to the HIU event, four highly-trained male cyclists (age = 24.0 +/- 2.1 yr; mass = 75.0 +/- 2.7 kg; (V)over dot O-2peak = 70 +/- 3 ml.kg(-1).min(-1)) performed 1) a progressive exercise test to determine peak Volume of oxygen uptake ((V)over dot O-2peak), peak power output (PPO), and ventilatory threshold (T-vent), 2) time-to-fatigue tests at 100% (TF100) and 150% of PPO (TF150), and 3) a laboratory simulated 40-km time trial (TT40). Blood lactate (Lac(-)), haematocrit and haemoglobin were measured at 6-h intervals throughout the HIU event, while heart rate (HR) was recorded continuously. Intermittent HIU performance, performance HR, recovery HR, and Lac declined (P < 0.05), while plasma volume expanded (P < 0.05) during the HIU event. TF100 was related to the decline in lap time (r = -0.96; P < 0.05), and a trend (P = 0.081) was found between TF150 and average intermittent HIU speed (r = 0.92). However, other measures (V)over dot O-2peak, PPO, T-vent, and TT40) were not related to HIU performance. Measures of high-intensity endurance performance (TF100, TF150) were better predictors of intermittent HIU performance than traditional laboratory-based measures of aerobic capacity.

Time will tell: Ambiguous non-responses on internet relay chat

The design of Internet Relay Chat (IRC) affords for, and itself produces, non-response situations that are not possible in FTF or telephone interaction. These system-occasioned nonresponses produce almost isomorphic stimuli to participant non-responses. Situations thus arise in which non-responses are interpersonally accountable despite agentive ambiguity. This study explores four intersections of participant-action and system-occasioned non-responses. An extension to Pomerantz's (1984b) 'pursuing a response' problems/solutions is proposed. The impact of IRC's design on its popularity is discussed in contrast to more recent chat systems. Suggestions are made for active and passive presence and non-response accounting features in future chat systems.

Enhanced effector and memory CTL responses generated by incorporation of receptor activator of NF-kappa B(RANK)/RANK ligand costimulatory molecules into dendritic cell immunogens expressing a human tumor-specific antigen

The outcome of dendritic cell (DC) presentation of Ag to T cells via the TCR/MHC synapse is determined by second signaling through CD80/86 and, importantly, by ligation of costimulatory ligands and receptors located at the DC and T cell surfaces. Downstream signaling triggered by costimulatory molecule ligation results in reciprocal DC and T cell activation and survival, which predisposes to enhanced T cell-mediated immune responses. In this study, we used adenoviral vectors to express a model tumor Ag (the E7 oncoprotein of human papillomavirus 16) with or without coexpression of receptor activator of NF-kappaB (RANK)/RANK ligand (RANKL) or CD40/CD40L costimulatory molecules, and used these transgenic DCs to immunize mice for the generation of E7-directed CD8(+) T cell responses. We show that coexpression of RANK/RANKL, but not CD40/CD40L, in E7-expressing DCs augmented E7-specific IFN-gamma-secreting effector and memory T cells and E7-specific CTLs. These responses were also augmented by coexpression of T cell costimulatory molecules (RANKL and CD40L) or DC costimulatory molecules (RANK and CD40) in the E7-expressing DC immunogens. Augmentation of CTL responses correlated with up-regulation of CD80 and CD86 expression in DCs transduced with costimulatory molecules, suggesting a mechanism for enhanced T cell activation/survival. These results have generic implications for improved tumor Ag-expressing DC vaccines, and specific implications for a DC-based vaccine approach for human papillomavirus 16-associated cervical carcinoma.

Desenvolvimento e implanta????o do sistema ??nico de benef??cios: sub

Este projeto trata de experi??ncia realizada na Dataprev sobre a implanta????o de um novo sistema de benef??cios, utilizando tecnologia de banco de dados e metodologia de desenvolvimento de sistemas. Foi elaborado um programa que substituiu outros existentes no processamento central, atendendo ??s fun????es de benef??cio do INSS. Trabalhou se em parceira com o INSS, envolvendo a migra????o de mais de 10 milh??es de benef??cios com regras complexas e por vezes n??o documentadas. O sistema est?? funcionando em mais de mil postos e outras inst??ncias do INSS, em todo o pa??s. Diminui????o dr??stica da possibilidade de fraudes e melhoria do atendimento aos benefici??rios foram os prop??sitos do projeto, que se realizaram na pr??tica

South-South relations and the English School of International Relations: Chinese and Brazilian ideas and involvement in Sub-Saharan Africa

The rise of large developing countries has led to considerable discussions of re-balancing global relations and giving greater priority to understanding South-South relations. This paper, in exploring the central ideas of Chinese and Brazilian foreign policy and the behavior of these two rising Southern countries toward Sub-Saharan Africa, argues that the English School of International Relations is well suited to understanding the intentions and actions that characterize South-South relations.

Between system maker and privileges taker: the role of China in the Greater Mekong Sub-region

Utilizing China's leadership projects in the Great Mekong Sub-Region (GMS) as a case study, this paper aims to investigate whether China qualifies as an international leader. This work argues that its geographic position and economic rise allow China to be a "system maker and privilege taker," which is a dual role forming in economic-political relations in the GMS in the last ten years. China is among major driving forces to set up an economic zone in GMS. Growing Chinese regional power is intimately related to the creation of various hubs connecting regional transportation, communication and energy systems that foster the economic development of this region. However, China also proves dark sides of rising powers which take advantage of their privileges to gain benefits. As a "system maker" with its own position and capability, China has notably benefited from building hydropower systems. More importantly, while China is pursuing its benefits and privileges, its hydropower projects have caused some negative effects for the ecosystem in the region. The inflation of dam constructions in both China and GMS countries is raising concerns about using natural resources of the Mekong River. Our concluding part addresses the pressing need to start a serious discussion on the balance between national interests and regional solidarity within the formulation of Chinese foreign policy in GMS.

Evapotranspiração real diária em sub-bacias do Paracatu, utilizando produtos do sensor Modis

A evapotranspiração define a perda total de água do sistema solo-planta para a atmosfera. Nas áreas agrícolas, particularmente onde se pratica algum tipo de irrigação, a determinação da evapotranspiração, por via de sensoriamento remoto, vem ganhando cada vez mais importância, pois possibilita identificar a eficiência com que a água tem sido utilizada. Nesse contexto, este trabalho tem o objetivo de determinar a evapotranspiração real diária (ETr diária), com a utilização de produtos do sensor MODIS, nas sub-bacias do Ribeirão Entre Ribeiros e Rio Preto, que ficam entre os Estados de Goiás e Minas Gerais. O SEBAL (Surface Energy Balance Algorithm for Land) foi utilizado para a obtenção da ETr diária em quatro dias diferentes, no período de julho a outubro de 2007. Os resultados encontrados foram compatíveis com os citados em outras literaturas e a comparação entre a evapotranspiração, obtida pelo SEBAL, e a evapotranspiração da cultura (ETc) demonstraram que esse algoritmo pode ser utilizado como boa opção para determinar, com a utilização de produtos do sensor MODIS, a evapotranspiração diária nas condições das sub-bacias do ribeirão Entre Ribeiros e rio Preto.

O reconhecimento dos heritage assets: o caso dos municípios da sub-região Minho--Lima

Este trabalho tem por objetivos analisar o disposto no POCAL (1999), na NICSP nº 17 do IPSASB (2006c), e na opinião de diversos autores, quanto ao reconhecimento dos heritage assets; bem como, verificar se poderão existir problemas inerentes ao reconhecimento dos heritage assets, na sub-região Minho-Lima, ultrapassáveis com a adoção das NICSP em Portugal. Do estudo efetuado, concluímos que o POCAL (1999) não apresenta os requisitos para o reconhecimento dos ativos. A NICSP nº 17 (IPSASB, 2006c) refere que, se a entidade reconhecer esses elementos como ativos, deve observar os requisitos para o reconhecimento dos ativos fixos tangíveis mencionados nessa norma. Atendendo também a que alguns dos municípios portugueses sentem dificuldades no reconhecimento dos heritage assets, concluímos que adotar um novo Sistema de Normalização Contabilística aplicável à Administração Pública (SNC-AP), assente nas NICSP, poderá ser a solução para ultrapassar tais dificuldades e garantir alguma comparabilidade da informação.

O reconhecimento dos bens do património histórico, artístico e cultural: esudo de caso dos municípios da sub-região Minho-Lima

Este trabalho tem por objetivos analisar o disposto no POCAL (1999), na NICSP nº 17 do IPSASB (2006c), e na opinião de diversos autores, quanto ao reconhecimento dos bens do património, histórico, artístico e cultural (BPHAC); bem como, verificar se poderão existir problemas inerentes ao reconhecimento destes bens, na sub-região Minho-Lima, ultrapassáveis com a adoção das NICSP em Portugal. Do estudo efetuado, concluímos que o POCAL (1999) não apresenta os requisitos para o reconhecimento dos ativos. A NICSP nº 17 (IPSASB, 2006c) refere que, se a entidade reconhecer esses elementos como ativos, deve observar os requisitos para o reconhecimento dos ativos fixos tangíveis mencionados nessa norma. Atendendo também a que alguns dos municípios portugueses sentem dificuldades no reconhecimento dos bens do património, histórico, artístico e cultural, concluímos que adotar um novo Sistema de Normalização Contabilística aplicável à Administração Pública (SNCAP), assente nas NICSP, poderá ser a solução para ultrapassar tais dificuldades e garantir alguma comparabilidade da informação.