972 resultados para NICOTIANA TABACUM BEL-W3
Resumo:
This article reports the results of an experiment that examined how demand aggregators can discipline vertically-integrated firms - generator and distributor-retailer holdings-, which have a high share in wholesale electricity market with uniform price double auction (UPDA). We initially develop a treatment where holding members redistribute the profit based on the imposition of supra-competitive prices, in equal proportions (50%-50%). Subsequently, we introduce a vertical disintegration (unbundling) treatment with holding-s information sharing, where profits are distributed according to market outcomes. Finally, a third treatment is performed to introduce two active demand aggregators, with flexible interruptible loads in real time. We found that the introduction of responsive demand aggregators neutralizes the power market and increases market efficiency, even beyond what is achieved through vertical disintegration.
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Last fall, a network of the European Cooperation in Science and Technology (COST), called “Basic Concepts for Convection Parameterization in Weather Forecast and Climate Models” (COST Action ES0905; see http://w3.cost.esf.org/index.php?id=205&action_number=ES0905), organized a 10-day training course on atmospheric convection and its parameterization. The aim of the workshop, held on the island of Brac, Croatia, was to help young scientists develop an in-depth understanding of the core theory underpinning convection parameterizations. The speakers also sought to impart an appreciation of the various approximations, compromises, and ansatz necessary to translate theory into operational practice for numerical models.
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In nature, living creatures are affected by several stimuli simultaneously. The response of living creatures to stimuli is called taxis. In order to reveal the principles of taxis behavior in response to complex stimuli, we simultaneously applied photostimulation and electric stimulation perpendicularly to a Volvox algae solution. The probability distribution of the swimming direction showed that a large population of swimming cells moved in a direction that was the result of the composition of phototaxis and electrotaxis. More surprisingly, we uncovered the coupling of signs of taxis, i.e., coupling of phototaxis and electrotaxis induced positive electrotaxis, which did not emerge in the single stimulation experiments. We qualitatively explained the coupling of taxis based on the polarization of the swimming cells induced by the simultaneous photo- and electric stimulation.
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The UPSCALE (UK on PRACE: weather-resolving Simulations of Climate for globAL Environmental risk) project, using PRACE (Partnership for Advanced Computing in Europe) resources, constructed and ran an ensemble of atmosphere-only global climate model simulations, using the Met Office Unified Model GA3 configuration. Each simulation is 27 years in length for both the present climate and an end-of-century future climate, at resolutions of N96 (130 km), N216 (60 km) and N512 (25 km), in order to study the impact of model resolution on high impact climate features such as tropical cyclones. Increased model resolution is found to improve the simulated frequency of explicitly tracked tropical cyclones, and correlations of interannual variability in the North Atlantic and North West Pacific lie between 0.6 and 0.75. Improvements in the deficit of genesis in the eastern North Atlantic as resolution increases appear to be related to the representation of African Easterly Waves and the African Easterly Jet. However, the intensity of the modelled tropical cyclones as measured by 10 m wind speed remain weak, and there is no indication of convergence over this range of resolutions. In the future climate ensemble, there is a reduction of 50% in the frequency of Southern Hemisphere tropical cyclones, while in the Northern Hemisphere there is a reduction in the North Atlantic, and a shift in the Pacific with peak intensities becoming more common in the Central Pacific. There is also a change in tropical cyclone intensities, with the future climate having fewer weak storms and proportionally more stronger storms
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Light and water are among essential resources required for production of photosynthates in plants. A study on the effects of weeding regimes and maize planting density on light and water use was conducted during the 2001/2 short and 2002 long rain seasons at Muguga in - the central highlands of Kenya. Weeding regimes were: weed free (W1), weedy (W2), herbicide (W3) and hand weeding twice (W4). Maize planting densities were 9 (D1) and 18 plants m-2 (D2) intercropped with Phaseolus vulgaris (beans). The experiment was laid as randomized complete block design replicated four times and repeated twice. All plots were thinned to 4 plants m-2 at tasseling stage (96 DAE) and thinnings quantified as forage. Soil moisture content (SMC), photosynthetically active radiation (PAR) interception, evapo-transpiration (ET crop), water use efficiency (WUE), and harvest index (HI), were determined. Percent PAR was higher in D2 than in D1 before thinning but higher in D1 than in D2 after thinning in both seasons. PAR interception was highest in W2 but similar in W1, W3 and W4 in both seasons. SMC was significantly lower in W2 but similar in W1, W3 and W4. D2 had lower SMC than D1 in season two. Weeding regime significantly influenced ET crop, while planting density and weeding regime significantly influenced WUE and HI. D2 maximizes water and light use for forage production but results to increased intra-specific plant competition for water and light severely before thinning (96 DAE) that reduce grain yield in dual purpose maize, relative to D1.
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Precipitation over western Europe (WE) is projected to increase (decrease) roughly northward (equatorward) of 50°N during the 21st century. These changes are generally attributed to alterations in the regional large-scale circulation, e.g., jet stream, cyclone activity, and blocking frequencies. A novel weather typing within the sector (30°W–10°E, 25–70°N) is used for a more comprehensive dynamical interpretation of precipitation changes. A k-means clustering on daily mean sea level pressure was undertaken for ERA-Interim reanalysis (1979–2014). Eight weather types are identified: S1, S2, S3 (summertime types), W1, W2, W3 (wintertime types), B1, and B2 (blocking-like types). Their distinctive dynamical characteristics allow identifying the main large-scale precipitation-driving mechanisms. Simulations with 22 Coupled Model Intercomparison Project 5 models for recent climate conditions show biases in reproducing the observed seasonality of weather types. In particular, an overestimation of weather type frequencies associated with zonal airflow is identified. Considering projections following the (Representative Concentration Pathways) RCP8.5 scenario over 2071–2100, the frequencies of the three driest types (S1, B2, and W3) are projected to increase (mainly S1, +4%) in detriment of the rainiest types, particularly W1 (−3%). These changes explain most of the precipitation projections over WE. However, a weather type-independent background signal is identified (increase/decrease in precipitation over northern/southern WE), suggesting modifications in precipitation-generating processes and/or model inability to accurately simulate these processes. Despite these caveats in the precipitation scenarios for WE, which must be duly taken into account, our approach permits a better understanding of the projected trends for precipitation over WE.
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EXECUTIVE SUMMARY Background and context The Grain Legumes CRP was established to bring all research and development work on grain legumes within the CGIAR system under one umbrella. It was set up to provide public goods outcomes to serve the needs of the sustainable production and consumption of grain legumes in the developing world, capitalising upon their properties that enhance the natural resource base upon which production so unequivocally depends. The choice of species and research foci were finalised following extensive consultation with all stakeholders (though perhaps fewer end users), and cover all disciplines that contribute to long-lasting solutions to the issues of developing country production and consumption. ICRISAT leads Grain Legumes and is partnered by the CGIAR centers ICARDA, IITA and CIAT and a number of other important partners, both public and private, and of course farmers in the developed and developing world. Originally in mid-2012 Grain Legumes was structured around eight Product Lines (PL) (i.e. technological innovations) intersecting five Strategic Components (SC) (i.e. arranged as components along the value chain). However, in 2015, it was restructured along a more R4D output model leading to Intermediate Development Outcomes (IDOs). Thus five Flagship Projects (FP) more closely reflecting a systematic pipeline of progression from fundamental science, implementation of interventions and the development of capacity and partnerships to promote and adopt impactful outcomes: FP1) Managing Productivity through crop interactions with biotic and abiotic constraints; FP2) Determination of traits that address production constraints and opportunities; FP3) Trait Deployment of those traits through breeding; FP4) Seed Systems, post-harvest processing and nutrition; FP5) Capacity-Building and Partnerships. Another three cross-cutting FPs analyse the broader environment surrounding the adoption of outputs, the capitalising of investments in genomics research, and a focus on the Management and Governance of Grain Legumes: FP6) Knowledge, impacts, priorities and gender organisation; FP7) Tools and platforms for high throughput genotyping and bioinformatics; and FP8) Management and Governance. Five FPs focus on R4D; FPs 5 and 6 are considered cross-cutting; FP 7 has a technical focus and FP 8 has an overarching objective. Over the three year period since its inception in July 1012, Grain Legumes has had a total budget of $140 million, with $62M originally to come from W1/W2 and the remaining $78M to come from W3/bilateral. In actuality only $45M came from W1/W2 but $106M from W3/bilateral corresponding to 106% of expectation. Purpose, scope and objectives of the external evaluation Principally, the evaluation of Grain Legumes is to ensure that the program is progressing in an effective manner towards addressing the system-level outcomes of the CGIAR as they relate to grain legumes. In essence, the evaluation aims to provide essential evaluative information for decision-making by Program Management and its funders on issues such as extension, expansion and structuring of the program and adjustments in relevant parts of the program. Subsequent to the formal signing of the agreed terms of reference, the evaluation team was also invited to comment upon the mooted options for merging and/or disaggregating of Grain Legumes. The audiences are therefore manifold, from the CGIAR Fund Council and Consortium, the Boards of Trustees of the four component CGIAR centres, the Grain Legumes Steering, Management and Independent Advisory Committees, to the researchers and others involved in the delivery of R4D outcomes and their partner organisations. The evaluation was not only summative in measuring results from Grain Legumes at arm’s length; it was also formative in promoting learning and improvements, and developmental in nurturing adaption to transformational change with time. The evaluation report was written in a manner that allows for engagement of key partners and funders in a dialogue as to how to increase ownership and a common understanding of how the goals are to be achieved. We reviewed research undertaken before the CRPs but leading to impacts during Grain Legumes, and research commenced over the past 2.5 years. For related activities pre- and post-commencement of Grain Legumes, we reviewed the relevance of activities and their relation to CGIAR and the Grain Legumes goals, whether they were likely to lead to the outcomes and impacts as documented in the Grain Legumes proposal, and the quality of the science underpinning the likelihood to deliver outcomes. Throughout, we were cognisant of the extent of the reach of CGIAR centres’ activities, and those of stakeholders upon which the impact of CGIAR R4D depends. Within our remit we evaluated the original and modified management and governance structures, and all the processes/responsibilities managed within those structures. Besides the evaluation of the technical and managerial issues of Grain Legumes, we addressed cross-cutting issues of gender sensitivity, capacity building and the creation and nurturing of partnerships. The evaluation also has the objective to provide information relating to the development of full proposals for the new CRP funding cycle. The evaluation addressed six overarching questions developed from the TOR questions (listed in the Inception Report, 2015 [http://1drv.ms/1POQSZh] and others including cross-cutting issues, phrasing them within the context of traditional evaluation criteria: 1. Relevance: Global development, urbanisation and technological innovation are progressing rapidly, are the aims and focus of Grain Legumes coherent, robust, fit for purpose and relevant to the global community? 2. Efficiency: Is the structure and effectiveness of leadership across Grain Legumes developing efficient partnership management and project management across PLs? 3. Quality of science: Is Grain Legumes utilising a wide range of technologies in a way that will increase our fundamental understanding of the biology that underpins several PLs; and are collected data used in the most effective way? 4. Effectiveness: Are Product Lines strategic contributors to the overarching aims and vision for Grain Legumes? 5. Impact: Are the impact pathways that underlie each PL well defined, measureable and achievable; and are they sufficiently defined in terms of beneficiaries? Does progress towards achieving outputs and outcomes from the major research areas indicate a lasting benefit for CGIAR and the communities it serves? 6. Sustainability: Is Grain Legumes managing the increasing level of restricted funding in terms of program quality and effectiveness, including attracting and retaining quality staff? Questions for the evaluation of governance and management focused on accountability, transparency, the effectiveness and success of program execution, change management processes and communication methods, taking account of the effects of CGIAR reform. The three crosscutting issues were considered as follows: i) gender balance in program delivery, e.g. whether each PL is able to contribute to the increased income, food security, nutrition, environmental and resource conservation for resource-poor women and men existing in rural livelihoods; ii) are internal and external capacity gaps identified/met, is capacity effectively developed within each product line, and are staff at all levels engaged in contributing ideas towards capacity building; and iii) is there effective involvement of partners in research and activity programming, what are the criteria for developing partnerships, how they are formalised and how is communication between partners and within Grain Legumes managed? It was not in remit to search for output, outcomes or impact, however as highlighted later, much of our time was spent on searching for information to support claims of impact, since Grain Legumes had no effective dedicated M&E in place at the time of undertaking the review. Approach and methodology The evaluation was conducted when Grain Legumes had been operational for approximately 3 years. The approach and methodology followed that outlined in the Inception Report [http://1drv.ms/1POQSZh]. The CCEE Team based its findings, conclusions and recommendations on data collection from several sources: review of program documents, communications with the CO, minutes and presentations from all management and governance committee meetings review of previous assessments and evaluations sampling of Grain Legume projects in 7 countries1 more than 66 face to face interviews, a further 133 persons in groups and 4 phone/Skype conversations: ICRISAT, ICARDA, CIAT and IITA staff, partners and stakeholders. Meetings with one Independent Science and Partnership Council (ISPC) member. meetings with over 100 people in 16 external groups, such as farmers’ groups online survey completed by 126 (33.4%) scientists who contribute to Grain Legumes and a number of non-CGIAR partners and Management representatives bibliometric review of 10 publications within each PL to qualitatively assess the design, conduct, analysis and presentation of results quantitative and qualitative self-assessment of the contributions of each of the PLs to the six criteria and 3 cross-cutting issues of evaluation mentioned above completed by PLCs (see below). We reviewed the Logical Framework that underpins the desired Goals, or Impacts of Grain Legumes, and the links between the outputs and inputs as they related to the organisational units of Grain Legumes. The logical framework approach to planning and management of Grain Legumes activities implies a linear process, leading from activities, outputs, outcomes, to impacts, but within such an approach there may be room for a more systems dynamics approach allowing for feedback at every step and within every step, in order to refine and improve upon the respective activities as new results, ideas, and directions come to light. We then developed a matrix that summarised quantitatively and qualitatively the contributions of each of the PLs to the six criteria and 3 cross-cutting issues of evaluation mentioned above. Main findings and conclusions Grain legume production and consumption remain of great importance to the food security of not inconsiderable populations in the developing world, and merit sustained research investment. We conclude that Grain Legumes continues to contribute significant returns to research investments by the CGIAR, and such investment should continue. The global research community looks to the CGIAR for leadership in Grain legumes, but needs to be assured of value adding when bringing CGIAR centres under the expected umbrella of synergy. However, there is considerable scope for improving the efficiency with which outcomes are achieved. We note that an absence of an effective M&E has hampered the assessment of the effectiveness of proposed impact pathways. Likewise progress has been hampered by the limited numbers of research partnerships with Advanced Institutes and by budgetary constraints (lamented for their stifling effects on continuation of ongoing exciting research). The unworkable management structure constrains the CRP Director’s leadership role; responsibility without authority will never lead to effective outcomes. Good fortune is responsible for many of the successes of Grain Legumes, underpinned by a devoted work force across the participating CGIAR centres and partners. The quality of the science is not uniformly high, and we believe that mentoring of scientists should be given priority where quality is poor. Simplified yet informative reporting is an imperative to this. World class science underpins the identification of, and molecular basis for, traits important for yield improvement and this expertise should be extended to all grain legume species, capitalising upon the germplasm collections. The linking of Grain Legumes with regional research and development consortia has been very successful, with outcomes aligning with those of Grain Legumes. We see that with declining funding consolidation of research effort based on likely successes will be necessary, and welcome the move afoot to incorporate grain legumes into an agri-food system focused on successful value chains that deliver sustainable outcomes. Relevance and Strategy Grain Legumes has geographic and disciplinary relevance, addressing the major supply chain issues of variety development seed system and agronomy, with some attention to quality and postharvest marketing systems. The CRP has provided the opportunity to cut ongoing and to initiate new research. Research funded by the Gates Foundation (Anon, 2014) suggests that the need for improvement is greatest in Africa and advocates reducing the number of crop by country combinations when resources are sparse. The lesser research investment in Latin America, however, is not in line with the regions’ dependency on legumes. In spite of the fact that there is no evidence of strong inter-partner CGIAR centre or internal synergy, the program is still moving ahead on most fronts in line with the overall project logframe. This is in spite of continual pushing and pulling by in particular donors and the CO. However, to quantify real impact, we believe Grain Legumes must have access to reliable baseline data on production and consumption, and this is missing. Similarly, there is little evidence of the proposed ‘Inclusive Market Oriented Development’ (IMOD) framework being used to assist with priority setting. The product lines, eight of which cover most of the historical programmes in place in the partner CGIAR centres at the commencement of the Grain Legumes, do not cover all the constraints for formal constraints analysis was not undertaken at the inception of the Grain Legumes, and some of this additionally identified research is undertaken under the umbrella of the FPs; this needs to be rationalised. We found the PLs to be isolated in activity, even with minimally-integrated activities within each PL, with little evidence of synergy between PLs. Even though the SCs should ensure a systems approach, as with the new FPs, we did not get a feel that this is so. The underplaying of agronomy, and production practices may be one reason for this. We believe that treating legume crops as if they were horticultural crops will increase farmer returns from investment. The choice of Flagship Projects makes sense, with the flow of activity firstly around crop management and agronomy followed by the logical sequence of trait discovery, incorporation into improved varieties, dissemination of those varieties through appropriate seed chains leading to market impacts, and the capacity building required at all steps. One obvious omission, however, is the lack of a central and strategic policy on the role of transgenics in Grain Legumes. We found four notable comparative advantages for Grain Legumes: the access to germplasm of component species, the use of the phenotyping facility at ICRISAT, the approach for village level industry for IPM, and the emphasis on hybrid pigeonpea. Efficiency Each centre has strong control of, and emphasis on, their ‘species’ domains, and ownership of the same detracts from possible synergy. Without synergy or value add, the Grain Legumes brings with it no comparative advantage over each centre continuing their own pre-CRP research agendas. We found little evidence of integration of programmes between centres and almost no cross-centre authorship of publications, such as could have occurred with the integrated cross-centre approaches to stress tolerance including crop modelling: the one publication (Gaur et al., 2015) on heat tolerance by ICRISAT, CIAT and ICARDA does not provide any keys to inter-centre collaboration. The integration of each centre with NARS and university research programmes is good, but the cross-centre links with NARS are poor. A better coordinated integration with Grain Legumes, , rather than through the individual centres, may reduce transactions costs for NARS, Monitoring and evaluation is, as noted throughout our report, one area of Grain Legumes research management that has not been given the attention it should have received. If it had have received proper attention, some of the issues of poor efficiency might have been nipped in the bud. A strong monitoring and evaluation system would have provided the baseline data and set the milestones that would have allowed both efficiency and effectiveness to be better appraised. We found no attempt to define comparative advantages of the CGIAR centres and their R4D activities, although practice showed the better grasp of CIAT in developing innovative seed distribution systems. During field visits and interviews, the CCEE Team observed shortcomings in the communication processes within Grain Legumes and with the broader scientific community and the public. For example, the public face of the program on the internet is out of date. Survey findings, however, suggest that information is shared freely and routinely within the PL within which scientists work. Some external issues, such as those with funding, low W1/W2 and poor sustainability of funding (especially if funding is top heavy with a few agencies), undermine research investment and confidence of partners in the system (e.g. as voiced by researchers working on crops and countries not included in TL III and the cessation of ongoing competitively-funded projects especially in India), but other issues attributable to the governance and management of the Grain Legumes, such as opaque integration of W3/bilaterals with W1/W2 funding require attention. Offsetting this, the existence of the Grain Legumes did mobilise additional funding [that it would not have if Grain Legumes did not exist]. We were concerned that Grain Legumes is simply not recognised outside of the CRP, with a limited www presence and centres promote themselves, rather than Grain Legumes (with exception in IITA). This is not a good move if one wishes to increase investment in the Grain Legumes. Although funding agencies require cost:benefit ratios, for example for each PL we faced difficulty in determining comparative value for money between investment in different types of research, and in being able to clearly attribute research and development outcomes to financial investment. There was also a time CCEE frame issue too. There is poor interaction with the private sector, notably in areas where they have a comparative financial advantage. We questioned in particular the apparent lack of interaction with the major agro-chemical companies, with respect to the development of herbicide tolerant (HT) grain legumes and the lack of evidence that the regulatory and trade aspects related to herbicide tolerant crops had been considered. Quality of science The quality of the science is highly variable across Grain Legumes, with pockets of real excellence that are linked to good levels of productivity, whereas other PLs are struggling to deliver quality publications, and outputs and outcomes that are based on these. There is much evidence of gradualism in terms of research output and outcomes, i.e. essentially the same activities that were ongoing at the time of the launch of Grain Legumes are still in place. However, there are examples of game changers including those from valuable investments in genomics, phenotyping, and bio-control. We were pleased to see large proportions of collaboration on publications with non-CGIAR centres, reflecting cooperation with partners in developed and developing countries. The value of collaboration when ensuring quality of science cannot be stressed highly enough both within the CRP, and with other global and national partners. PLs should be given incentives to collaborate with other CRPs and external institutions. There is little cohesion between PLs and with other CRPs as evidenced by publications, although there are some exceptions. We suspect the reasons for this are driven by funding. Productivity from the different PLs is also highly variable and it is not clear what other activities staff are engaged in since, in some PLs, they do not appear to lead to quality publications. Effectiveness Grain Legumes has been very effective in addressing component issues of research, but not the continuum from variety development to legumes on someone’s dinner plate. Our overall assessment of the effectiveness of Grain Legumes in stimulating synergy, innovation and impact indicate that gradualism is more prevalent than innovation. It also shows, as do publications, that there is little integration of disciplines or a focus on ‘systems’. The absence of socio-economists from research teams is evident in the general lack of an end user focus. However, research on genomics, plant breeding and seed systems have made great strides forward, on the brink of delivering impact. Agronomy has been a poor sister, but some of the competitive grants within Grain Legumes have unearthed some potential game changers, such as objective use of transplanting as an agronomic practice. As mentioned earlier, the lack of effective M&E (however, this was part of some major projects such as TL II/TL III), and therefore the ability to monitor impact pathways and achievement of impact, implies no systematic management of data. This creates difficulty when attempting to evaluate the achievement of the Grain Legumes objectives. One might have expected at least one attempt to try to develop publications between centres arguing for similar biologies/research approaches, bringing species together under one umbrella, but we did not find any evidence for this. It is most unfortunate that, due to budgetary cuts, the new ‘schemes’, e.g. competitive grants and scholarships, were cut off before gaining a foothold. With 8 species addressed by Grain Legumes, it is not unexpected that there will be little evidence of shared protocols across centres/species. One rare example was that hosted by the United States Department of Agriculture (USDA) on shared methods for phenotyping of legume germplasm. Researchers from CIAT, IITA, ICRISAT and three USDA stations attended, focusing in simple canopy temperature and root morphology measurements. It is our belief that as a set of research centres, the CGIAR centres should be focusing on the research for which they have a comparative advantage. While imposing the restructure to FPs, which is fine for development objectives and outcomes (funded through W3/bilateral), it is less so for a research institute, and the structure should not detract from the more basic work expected of an international CGIAR centre (or set of centres as in a CRP). Impact It is well known that research does not always lead to scientific breakthroughs. Also, activities such as plant breeding are long term; making impacts difficult to assess. We believe that sufficient progress with genomics and associated research has been made to warrant impact, but we are unable to quantify the levels of impact, or the timeframe for the same. Work in Grain Legumes has enormous potential for real impact in scientific research, commercial, farming, smallholder and household communities, much of which is being realised. However, the PLs need to become more adept at providing convincing cases that are strongly evidenced for these impacts, as this is likely to be a key factor in leveraging future funding. Claimed gains must be referenced against baseline data, and these are not always readily available. The CCEE Team realises that such impact evaluation represents a significant drain on resources, and Grain Legumes should determine whether the balance of costs to benefits favours such investment. Interviews conducted by the CCEE during site visits showed that PLs are quantifying the area of adoption of varieties, but in most cases they are not measuring the impact on environment, health/nutrition. Since the health and nutritional benefits and the environmental gains from growing legumes are major arguments for supporting grain legume research, the community is currently missing substantial opportunities to strengthen its own case for continued support. Whilst there are some impressive examples of considering the whole value chain, e.g. white beans from production through to export; in the main, the pipeline to end user is somewhat piece-meal, with no clear definition of the end user nor differential responsibility of Grain Legumes and of partners. The lack of robust time-defined impact pathways is highlighted in Section 7.4, and even though developed for PL5, timeframes are essential for measuring progress against prediction. Sustainability In summary, there is general acknowledgement that future funding is likely to become more limited, specifically in W1&2 and there is understandable concern over the support for the staff and basic infrastructure that underpin the Grain Legumes programme. For example, it is reported that staffing in parts of CIAT has been dependent on W1&2 and that this is too unstable to re-establish a critical mass. The present system whereby W3 and bilateral projects do not pay a realistic level of overheads means that such projects are being effectively subsidised by W1&2. This position is not sustainable in the long term as there will be a progressive but definite loss of basic skills and resources in the core centres. The only obvious options to prevent this outcome include a severe reduction in the fixed costs of the centres and/or a refusal to accept W3 and bilateral funding with an inadequate overhead component. In the latter case, there is an obvious danger that funders will move their resources away from the CGIAR system towards other, perhaps less expensive, suppliers of research, and possibly more relevant development expertise. This issue must be addressed. As the Grain Legumes moves into the future, and if sustainable funding cannot be assured, decisions must be made concerning a reduction in activities, keeping some caretaker breeding maintenance, and focus (as has TL III) on fewer species and a reduced geographic focus. Cross cutting issues: Gender, capacity building and partnerships Gender is not mainstreamed, but there is some evidence that this is improving, especially with dedicated gender specialists and the slow integration of gender across CRPs. There is a need to approach gender through the vision of agriculture as a social practice, with recognition of what changes will be acceptable culturally and what not, and capitalising upon the perceived and actual features of production and processing that grain legumes are primarily women-based crops. Gender awareness may be high among Scientists, but it appears to be a predominantly passive attribute with few proactively seeking opportunities for gender equity. It is, however, a sound sensitivity base on which to build. Nevertheless, examples of notable gender initiatives were identified during field visits. For example, in Benin, the development of biocontrol technologies has enthusiastically integrated diversity, engaging with women farmers’ and youths while maintaining cultural norms. Women are gathering and processing, youths are taking the product to market. The implication is that several groups benefit, rather than domination by the majority group. In Malawi, innovative approaches have been developed to improving nutrition for children, such as incorporating nutrient enriched bean flour products into snacks. In India, scientists collaborating with gender scientists and socio-economists are identifying the impact of mechanical harvesting on agricultural labour and the potential displacement of female labourers. In Kenya, a novel initiative is improving the accessibility of certified seed for new varieties. Seed suppliers have introduced small packs of grain legume seed at low unit cost, which are being purchased by young people and women. Capacity building efforts for external partners are not clearly aligned with the research mandate and delivery of Grain Legumes. However, there are a number of training activities that are being undertaken by Grain Legumes, largely through the W3/bilateral project. Gender balance never reaches parity, but it appears that efforts are made to include female participants. Within the evaluation timeframe it was not possible to conduct external surveys to further validate or review external capacity building efforts in Grain Legumes. Training of scientists is significant, with >40 benefiting. Postgraduate training is varied across PLs, and there is some opportunity to increase the numbers being supervised. We consider that support for postgraduates at ICRISAT could be better coordinated, satisfying more of the students’ needs. It is important, however, to follow up investments in capacity building by monitoring effectiveness, career progressions and so on. Training activities appear to be rather centre-specific, not following a coordinated programme managed by, nor at the level of, the Grain Legumes. Numbers of persons trained and their gender are important, but a measure of the effectiveness of the training is more important. Although optimism is expressed by the great majority of Research Managers that partnerships were working well to leverage knowledge and research capacities, scientists have a less favourable view, particularly in terms of their incentives to participate. It seems likely that the activities taking place within Grain Legumes were, in the most part, continuations of previous collaborations. This is not surprising in light of the reduction in the emphasis on partnerships as Grain Legumes evolved to a funded project, and the consequent lack of opportunity and ambition for establishing novel partnerships. Where they exist, partnerships are good on the whole, especially with US. They could be expanded where comparative advantages exist (for example with Canada and Australia for machine harvestable legumes), but some earlier identified partnerships, e.g. with Turkey, have not been capitalised upon. Others experience problems of variety access (the embargo on exports of some sources of materials from India), yet others do have relevance e.g. imported Brazilian varieties in pre-release in Ethiopia (even though two of the three are from CIAT materials). Governance and Management The standard format of committee structure and responsibilities is common to other CRPs, as are the attendant problems. One of the major problems is that the Grain Legumes Director has responsibility but no authority; hence, even with the support of the RMC, the Director is unable to ‘direct’ in the literal sense of the work the activities of Grain Legumes. We also see the same sense of helplessness with the role of the PLCs. They have responsibility but no authority in managing the affairs of their PL, and they have no access to funds with which to promote intellectual collaboration and cooperation. Minutes from governance and management meetings do not reflect the compromised weak position of the Director and the associated difficulties in the management of Grain Legumes. Nor do the minutes reflect concerns about the amount of time spent by scientists in meetings for planning, integration, evaluation and reporting. Many scientists reported significant opportunity costs in participating in the ongoing imposed [by the CO] evolution of Grain Legumes and CRPs in general. The changes brought in by the CO have not helped promote any greater authority and capacity of the Grain Legumes Director to direct. Likewise, they do not address any of the issues with the conflict of interest in having the Lead Centre chair the Steering Committee. Indeed, we believe that the combining of the Steering Committee with the Independent Advisory Committee, besides becoming unwieldy in number, annuls any sense of independence in advice offered to the Grain Legumes management. We have concerns with the declining proportion of W1/W2 funds (as expressed in the section on Sustainability), and believe that when basic financial planning takes place, integration of W1/W2 and W3/bilateral sources must occur, and be linked to anticipated outcomes and impacts. This will ensure a close alignment of collaborators’ and partners’ objectives and contributions to that of the Grain Legumes. We also queried the process for, and the formality, or lack of, surrounding, the approval of annual budgets, and the level of priority setting when budgets are cut. Recommendations for Grain Legumes The CCEE Team makes the following recommendations, critical issues are highlighted in bold, and those that require action by an entity other than the Grain Legumes Research Management Committee or Project Management united are identified in a footnote. Relevance and Strategy Recommendation 1: A period of consistency is necessary to raise confidence, morale and trust across scientists, managers and partners to foster the assembly of enduring Grain Legumes outcomes2. There needs to be a concerted effort to undertake baseline studies and to implement a robust M&E activity during this period. Without these data the foundation for integrated research in grain legumes is jeopardised. There is a strong need to link more closely with the private sector, especially where there are financial and other comparative advantages to do so. Recommendation 2: The agronomic and physiological trait targets of Grain Legumes (tolerance to changing climate patterns, to the pests and diseases of today and of the future, incorporation of quality traits and adaptations to intensive production systems [machine-harvestability and herbicide tolerance], and short season high yielding characters) are all worthy of continued investment when selecting for improved varieties. There needs to be a common strategy, implemented across centres and species, as to how to address these trait targets through conventional and modern breeding approaches, but only if adequate funding is assured and secured and if a consistency and unity of purpose can be achieved across a large-scale. This should take the form of cross-species coordinated research programmes to address these breeding targets that cooperate across centres and make efficient use of facilities and other resources. The CRP should undertake a detailed strategic review of the role of transgenics across the range of targets in the mandate crops. Efficiency Recommendation 3: The lack of an effective M&E process is a significant omission, not least in terms of more efficient use of resources and the lack of baseline data with which to measure impact, and must be rectified. Reinforcing Recommendation 1, an effective M&E system initially directed towards baseline studies must be implemented. Transaction costs may be reduced through bilateral projects, which are seen as more cost effective than W1/W2 where transaction costs are disproportionately higher. Recommendation 4: To improve communication and coordination within the CRP, and with a broader audience: There is a priority need for a central database containing, names of staff associated with Grain Legumes and their time commitments, their responsibilities, and involvement in CRP activities, their progress and achievements, their publications, plans of training, travel, and other opportunities for interaction. Regular global meetings of staff involved in managing PLs, the entire CRP management staff and the IAC are essential for effective coordination of all activity within Grain Legumes. The website must be given a complete overhaul and improvement and then regular maintenance must be provided to keep it current. Quality of Science Recommendation 5: It is essential to continue investment in good science and to institute a change from gradualism in research output and outcomes to an expectation of innovative and concrete achievements that can be attributed clearly to people, centres and core facilities. A cost:benefit analysis and subsequent strategic planning must be undertaken to justify further investment in the genomics and phenotyping facilities at ICRISAT especially as such technologies advance rapidly. Strategic planning and coordination must also be implemented for capitalising on the investment in crop simulation modelling. (The phenotyping facility of ICRISAT needs to focus on delivering some outcomes, not only outputs.) PLs should be given incentives to collaborate with other CRPs and external institutions. The CCEE recommends special recognition of high quality collaborative papers, thereby encouraging increased quality of the research programmes and widening the penetration of research impacts. More importance should be placed on the quality of publication, rather than quantity of outputs and there should be recognition of other types of outputs from Grain Legumes. The CRP Director must be party to this. If staff are engaged in activities that relate more to impact than publication then this needs to be monitored and recorded and a clearer understanding developed of what constitutes a pathway to impact and how success of such activities can be evaluated. A system must be devised and incorporated into the M&E to enable recognition of other types of outputs (non- publication based) from Grain Legumes, e.g. varieties for breeders. Effectiveness Recommendation 6: To develop greater synergy, Grain Legumes should review management processes and the direction of research activities. In particular, far more extensive integration of research and knowledge exchange should take place across both African and Asian continents so that the best aspects of both can be shared. A multidisciplinary approach is recommended that considers processing solutions, as well as breeding solutions, to capitalise upon the nutritional benefits of the grain legume crops. We recommend: A better collaboration with social scientists at the design stage of experiments in order to improve the utility of the work carried out and to understand its reach. Supporting3 the adoption of best practice electronic data collection, central storage and open access, particularly of genomic data, for public use. Given the focus on the link between phenotyping and genotyping, we note that there is a lack of congruence between the populations that are being phenotyped and those being genotyped, and therefore these could be better aligned within each species. Concentrating investment external to Grain Legumes on scaling up production of varieties with the most promising trait profiles to meet the basic seed requirement. Developing a more holistic approach that coordinates an understanding of the disease pathology and epidemiology, and of new chemicals before they become commercially available, together with agronomic practice such that recommendations can be made for growers. Continuing work to establish whether agronomic factors hold true in different environments and to assess GxE effects within breeding programmes. Such rigorous trial practices should be used to inform the evaluation of breeding lines and to provide phenotype data to associate with markers for traits such as heat, drought and herbicide tolerance. Considering grain legumes as if they were vegetable crops in terms of the strategy for intensification of production, both from the management perspective and for seed systems, will be a useful development objective into the future. This will bring about more rapid intensification and is likely to increase farmer returns from investment. Recommendation 7: The CGIAR centres should focus in on the research for which they have a comparative advantage. While imposing the restructure to FPs, which is fine for development objectives and outcomes (funded through W3/bilateral) it is less so for a research institute, and should not detract from the more basic work expected of an international CGIAR centre (or set of centres in a CRP). Collaborative approaches should be explored within Grain Legumes, e.g. similar biologies/research approaches, bringing species together under one umbrella. Similarly better alignment is needed to address the lack of congruence between the populations that are being phenotyped and those being genotyped. Despite positive impacts from research in genomics, plant breeding and seed systems, the lack of an effective M&E, already mentioned elsewhere, has reduced the ability to monitor impact pathways. This must be addressed. The absence of socio-economists from research teams is evident in the general lack of an end user focus. Responsibilities of the different actors in the whole value chain must be considered and identified when developing impact targets, and the pathway leading to them, for individual projects. People with socio-economist skills must be part of the team from project inception so that appropriate frameworks are incorporated for measuring and influencing sociological and economic changes brought about by Grain Legumes research. Impact Recommendation 8: PLs need to become more adept at providing convincing cases in which impact is strongly evidenced, as this is likely to be a key factor in leveraging future funding. Claimed gains must be referenced against baseline data, and these are not always readily available. The CCEE Team realises that such impact evaluation represents a significant drain on resources, and Grain Legumes should determine whether the balance of costs to benefits favours such investment. It is essential that Grain Legumes provides training to staff on what constitutes impact and how it can be recorded. Specific, rather than generalised, potential impacts arising from activity within Grain Legumes should be defined at the time of justifying the programme of work and a pathway to impact should form part of the documentation prepared ahead of a piece of research commencing. . In other words, centres should submit work plans to Grain Legumes before they are undertaken using W1/W2 funds Recommendation 9: The reporting activity must be streamlined to a single (brief) format that can be used to report to Grain Legumes, Centres and to donors for special project activities4. Sustainability Recommendation 10: As Grain Legumes moves into the future, and if sustainable funding cannot be assured, decisions must be made concerning a reduction in activities, keeping some caretaker breeding maintenance, and focus (as has TL III) on fewer species and a reduced geographic focus. Zeigler (Director General of IRRI) states “…time and effort would be better spent … making tough decisions about which programs deserve the precious support.” The present system whereby W3 and bilateral projects do not pay a realistic level of overheads means that such projects are being effectively subsidised by W1&2 and there will be a progressive but definite loss of basic skills and resources in the core centres. To prevent this outcome it is necessary to significantly reduce the fixed costs of the centres and/or refuse to accept W3 and bilateral funding without an adequate overhead component. In the absence of long term certainty, the scale of the budget allocated to each of the new CRPs should be very conservative, a feature that can only be achieved by restricting/reducing the scope, probably quite significantly. Cross cutting issues: Gender, capacity building and partnerships Recommendation 11: The challenge for Grain Legumes is to achieve pro-active gender mainstreaming, which facilitates opportunities for gender diversity within all activities, from employment processes through research to end users. Strategic measurable gender indicators need to be embedded in research design, for instance, through specific IDOs for each of the flagships projects. Accurate baseline data are also required to facilitate M&E reviews of progress. Implementation of the Gender Strategy is the responsibility of everyone, not solely the Gender Team. Thus, ownership could be encouraged by setting personal development for key personnel objectives with specific outcomes, e.g. employment practices or research outcomes. Recognising the positive gender initiatives in progress or planned, feedback must be communicated and integrated into broader research planning to share opportunities, methods and outcomes. In addition to promoting gender equity in research, Grain Legumes also needs to ensure that working environments are gender sensitive and that recruitment processes, including promotion opportunities are equitable. Gender imbalance in management should be actively examined to identify further opportunities for developing female leadership. Recommendation 12: It is recommended that a training plan be devised to ensure that capacity building efforts are more clearly aligned with the research mandate, delivery and timeframe of Grain Legumes. Moreover, we recommend that ICRISAT develop a strategy to treat their new cohort of researchers more equitably in the future. Recommendation 13: To develop a more coherent strategic programme designed to eliminate overlap and promote synergy between programmes with common aims, Grain Legumes should hold a meeting with a range of partners. Governance Recommendation 14: Governance processes should be re-assessed and the structure altered to ensure that the Grain Legumes Director has the authority and budget control to drive the execution of strategy. The ISC should be truly independent and given the power to influence strategic decisions before they become final. We also recommend that PLCs are provided with the authority to manage the direction and finances of their PL; and that ring-fenced funds are provided for the promotion of collaboration, coordination and staff training5. The way ahead In our view, having seen the ineffectiveness of much of the attempts [or lack of attempts] to harness synergies between multiple centres, and of the strength in few or sole centre partnerships, we believe that there is little to justify a full retention of the 8 legume species and 4 CGIAR centres in a CRP. TL I and II and PABRA have shown to be reasonably good cross-centre and single centre integrated programmes, but even they suffer from incomplete value chain approaches to increasing rural incomes while increasing food and nutritional security; they both need multi-faceted solutions which are not immediately forthcoming from Grain Legumes. It is important to embed Grain Legumes research within the agri-food systems these crops serve. Figure ES1 broadly shows the perceived current and potential degrees of synergy between centres, PLs and species, and is discussed more in the text. It is clear that the value chains for individual species from trait determination to nutritional impact have more cohesion than do the individual activities (e.g. trait deployment) across species. For this reason we believe that the future for research in Grain Legumes is best addressed by focusing on each of the species separately, and within an ecosystem framework; any synergy for research across species can be effected through communication and not necessarily through obligatory cooperative research. The ecosystem framework will allow for strengthening of agronomy type systems research, the arguments for benefits of inclusion of grain legumes in cropping systems, which is notable by its absence in much of what Grain Legumes currently undertakes. Figure ES1. Current and potential degrees of synergy between centres, PLs and crop species We therefore agree with the innovation in agri-food systems approach of the CG, and believe that Grain Legumes rightly belongs in the Dryland Cereals and Legumes Agri-food Systems. We believe that the option of combining the crops of dryland cereals and legumes in the cereal-legume-livestock systems of subsistence farming communities for whole-farm productivity is closest to the best way forward. Indeed the inclusion of grain legumes may not warrant even a CRP alone, rather the legume components should fit in with the major crops that determine the production systems. Legumes will always be subservient to the major cereals, as necessary adjuncts to the whole production system, providing both nutritional diversity and environmental services, neither achievable from cereals alone. Figure ES2. Most suitable option for integration of Grain Legumes and Dryland Cereals into an Agri-Food Systems CRP Most suitable option for integration of Grain Legumes and Dryland Cereals into an Agri-Food Systems CRP, which Incorporates ex-Dryland Systems, Dryland Cereals, Grain Legumes, some HumidTropics, some ex-Livestock &Fisheries into a new CRP Will cover full agri-food system VC for all 8 legumes in all ecologies, but must interact (dock) with the relevant AFS-CRPs for the dominant cereal in the relevant ecology Hence, will need to negotiate with other Agrifood Systems-CRPs on who does what for legumes In addition, responsible for sorghum and millet in the mixed dryland crop-livestock agro-ecologies For major game changers to be effected, we believe that the game has to change, and there is little evidence of this. The direction of CRPs is the correct route, but the journey has not yet come to its destination. A major change of game [such as the adoption of a Flagship Project approach as exemplified by the Australian CSIRO – where flagships contract services from centres of research excellence] would be painful to implant. The CGIAR system is going down the right pathway but it has not gone far enough.
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The Eag1 and Eag2, voltage-dependent potassium channels, and the small-conductance calcium-activated potassium channel (Kcnn3) are highly expressed in limbic regions of the brain, where their function is still unknown. Eag1 co-localizes with tyrosine hydroxilase enzyme in the substantia nigra and ventral tegmental area. Kcnn3 deficiency leads to enhanced serotonergic and dopaminergic neurotransmission accompanied by distinct alterations in emotional behaviors. As exposure to stress is able to change the expression and function of several ion channels, suggesting that they might be involved in the consequences of stress, we aimed at investigating Eag 1, Eag2 and Kcnn3 mRNA expression in the brains of rats submitted to isolation rearing. As the long-lasting alterations in emotional and behavioral regulation after stress have been related to changes in serotonergic neurotransmission, expressions of serotonin Htr1a and Htr2a receptors in male Wistar rats` brain were also investigated. Rats were reared in isolation or in groups of five for nine weeks after weaning. Isolated and socially reared rats were tested for exploratory activity in the open field test for 5 min and brains were processed for reverse-transcription coupled to quantitative polymerase chain reaction (qRT-PCR). Isolated reared rats showed decreased exploratory activity in the open field. Compared to socially reared rats, isolated rats showed reduced Htr2a mRNA expression in the striatum and brainstem and reduced Eag2 mRNA expression in all examined regions except cerebellum. To our knowledge, this is the first work to show that isolation rearing can change Eag2 gene expression in the brain. The involvement of this channel in stress-related behaviors is discussed.
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Nitric oxide synthase (NOS) has been reported to be involved with both bone healing and bone metabolism. The aim of this study was to test the null hypothesis that there is no correlation between new bone formation during mandibular distraction osteogenesis and NOS expression in the trigeminal ganglion of rats. Newly formed tissue during distraction osteogenesis and trigeminal NOS expression measured by the NADPH-diaphorase (NADPH-d) reaction were evaluated in 72 male Wistar rats by histomorphometric and histochemical methods. In animals submitted to 0.5 mm/day distraction osteogenesis, the percentage of bone tissue was higher in the basal area of the mandibles compared with the center and significantly increased through the experimental periods (P < 0.05). At the sixth postoperative week, the difference in bone formation between the continuous and acute distraction osteogenesis groups was the highest. Significant correlation between new bone formation by distraction osteogenesis and NADPH-d-reactive neurons was found, varying according to neuronal cell size (r = -0.6, P = 0.005, small cells strongly stained; r = 0.5, P = 0.018, large cells moderately stained). The results suggest that NOS may play a role in the bone healing process via neurogenic pathways, and the phenomenon seems to be neuronal cell morphotype-dependent. Further studies are now warranted to investigate the mechanistic link between the expression of trigeminal NOS and mandibular new bone formation by distraction osteogenesis.
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SammanfattningHögskolan Dalarna har i samarbete med Naturbränsle i Mellansverige AB genomfört studier på ett nytt fordon för transport av skogsflis. Eftersom fordonet är utrustat med kran och skopa, innebär det att flisskördaren kan tippa flisen direkt på marken, eller på en i förväg utlagd duk för att förhindra att föroreningar (grus, sten etc.) följer med vid lastningen av fordonet. Pro-jektet har finansierats av Statens Energimyndighet (STEM) samt genom naturabidrag från del-tagande företag.Studier har även genomförts på lastväxlarfordon med container för att jämförelser skall kunna göras mellan de båda fordonstyperna. Studierna pekar på att det nya transportfordonet sanno-likt är ett bättre alternativ på stora objekt med långa transportavstånd och på objekt med otill-räcklig uppställningsplats för containrar. Mycket talar också för att det nya fordonet kan an-vändas på mycket små objekt under förutsättning att de ligger efter samma vägsträckning och under förutsättning att flisskördarens initialkostnad kan hållas på en rimlig nivå.Tidsstudier har också genomförts på flisskördarens arbete, eftersom det i vissa delar är direkt beroende på vilket vidaretransportfordon som används. I de fall vidaretransporten sker med lastväxlarfordon vägs flisen innan den tippas i containern (en åtgärd för att fordonet inte skall överskrida tillåten lastvikt). Om lastvikten inte är begränsande genomför flisskördaren vissa åtgärder för att lastvolymen i respektive container skall kunna maximeras (t.ex. utjämning och viss packning av flisen med hjälp av kranen). Dessa fordonsspecifika åtgärder tog i genom-snitt 0,09 min/m3s (fördelade på 17% vägning, 41% tippning och 42% utjämning/packning).I det fall vidaretransporten sker med det nya fordonet behöver flisskördaren inte väga flisen eftersom bilen är försedd med kranvåg. Däremot tillkommer andra arbetsuppgifter för flis-skördaren, t.ex. preparering av avläggsutrymmet (snöpackning, sten- och buskröjning), och/ eller hantering och utläggning av dukar. Dessa arbetsmoment tog i genomsnitt 0,10 min/m3s när dukar användes (fördelade på 8% sten-/buskrensning, 50% hantering av dukar och 41% tippning) och 0,05 min/m3s när flisen tippades direkt på marken (fördelade på 17% sten-/buskrensning och 83% tippning av flis i container). De fordonsspecifika arbetsuppgifterna som genomförs av flisskördaren tar m.a.o. ungefär lika lång tid när vidaretransporten genom-förs med lastväxlarfordon som med det nya fordonet när dukar används. Om flisen tippas på packad snö (inga dukar används) halveras den fordonsspecifika arbetstiden. I förhållande till flisskördarens totala arbetstid för flisning och transport utgör dock de fordonsspecifika arbets-uppgifterna en mindre andel, eller ca 15% av totala arbetstiden vid ett terrängtransportavstånd på ca 100 m när vidaretransporten sker med lastväxlarfordon eller det nya fordonet och dukar används, samt 8% när transporten sker med det nya fordonet och inga dukar används.Arbetstiden för vidaretransporten är i huvudsak beroende av transportsträckan och medel-transporthastigheten. När lastväxlarfordon används är arbetstiden dessutom beroende av lastvolymen (antalet containrar och deras volym) samt om tippmöjligheter endast finns på dragfordonet (containrar på släp måste omlastas till dragfordon innan flisen kan tippas) eller om tippmöjligheter finns på såväl dragbil som släp. Om släpet inte kan medföras till uppställ-ningsplatsen för containrarna (p.g.a. alltför smal och kurvig väg eller utrymmesbrist för vänd-ning av fordonsekipaget) påverkas även arbetstiden av avståndet mellan containrar och släp samt av medelhastigheten vid ”skotning” av containrar till släpet.Medelhastigheten vid transport på landsväg var densamma för de båda fordonstyperna (drygt 66 km/tim). Medelhastigheten var även densamma på skogsbilväg med god standard (ca 40 km/tim) och normal standard (ca 25 km/tim). Däremot pekar studien på att medelhastigheten på sämre skogsbilvägar är något lägre för det nya fordonet (knappt 20 km/tim) jämfört med lastväxlarfordonen (ca 20 km/tim). Medelhastigheten vid ”skotning” av containrar varierade mellan ca 5 km/tim och ca 25 km/tim beroende på transportavstånd och vägstandard.Arbetstiden för avställning av containrar på avverkningsobjektet (exkl. transport) låg i genom-snitt på ca 4 minuter för lastväxlarfordon med 2 containrar (en container på bilen och en på släpet). För lastväxlarfordon med tre containrar (en container på bilen och två på släpet) tog avställningen i genomsnitt drygt 13 minuter. Vid hämtning av flis på avverkningsobjektet tog lastningen för fordon med två containrar drygt 12 minuter och för fordon med tre containrar knappt 23 minuter. Lossning av flis vid värmeverk (inkl. vägning av fordon etc.) tog i genom-snitt ca 18 minuter för fordon med två containrar (tipp på bil och släp) och ca 35 minuter för fordon med tre containrar (endast tipp på bil).Lastning av flis på det nya transportfordonet tog i genomsnitt knappt 44 minuter när dukar användes och drygt 35 minuter när inga dukar användes. Tiden för lossning av flis på värme-verk/terminal varierade mellan ca 13 och 23 minuter med ett medelvärde på ca 17 minuter.Med underlag av genomförda tidsstudier har arbetstiden för transport (inkl. flisskördarens for-donsspecifika arbetsuppgifter) beräknats för tio avverkningsobjekt belägna i trakten av Mock-fjärd (total volym ca 4 000 m3s). Transportavståndet till mottagande värmeverk var mellan ca 30 och 60 km (enkel väg). Vid transport med lastväxlarfordon (2 + 3 containrar) har arbets-tiden beräknats till ca 122 G0-tim. Vid transport med det nya fordonet beräknas arbetstiden till ca 137 G0-tim när dukar används och ca 124 G0-tim när inga dukar används. Den totala transportsträckan har beräknats till ca 4 640 km när lastväxlarfordon används och ca 4 100 km när det nya fordonet används. I jämförelse med lastväxlarfordon visar studierna att det nya fordonet bl.a. har följande fördelar: •Transporterna kan ske mer planerat och i en lugnare takt (stressmomentet försvinner).•Beroendeförhållandet mellan fordonsförare och flisskördarens förare försvinner (vid transport med lastväxlarfordon krävs ständiga kontakter mellan förarna).•Risken för störningar i transportflödet minskar (fordonet kan lätt dirigeras om till andra objekt i händelse av maskinhaveri på flisskördaren, tjälrestriktioner etc.).•Miljövinsterna blir större jämfört med lastväxlarfordon som måste ställa ut tomma containrar innan flisningen kan påbörjas (mindre avgasutsläpp, väg- och broslitage).•Eftersom fordonet är utrustat med egen lastningsutrustning finns inget behov av last-maskiner på terminaler.•Möjligheter finns att lagra flisen kortare eller längre tid på avläggsplatsen (vid ett sy-stem baserat på lastväxlarfordon måste all lagring i skog ske i form av osönderdelat bränsle, alternativt sönderdelas bränslet och transporteras till terminal för lagring).Till nackdelarna med det nya transportfordonet hör bl.a. risken för att föroreningar följer med vid lastningen samt att framkomligheten på smala och krokiga skogsvägar är sämre jämfört med lastväxlarfordonet som kan ställa av släpet och ”skota” fram containrarna.
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Samverkan mellan företag, stat, kommuner, landsting o.s.v. och högskolor representerar tillsammans den plattform vilken ofta benämns som Triple Helix. Denna typ av samverkan utgår från antagandet att de inblandade aktörerna kan få belöningar som överstiger de bidrag som de själva sätter in. En sådan samverkan antas också ge företag och den region de befinner sig i konkurrensfördelar och möjligheter att växa och utvecklas. Syftet med Wdalaprojektet, som startade våren 2005 och som skulle avslutas i och med utgången av 2006, var att bygga upp en sådan varaktig samverkan. Den frågan som är i fokus är hur framgångsrikt W-dalaprojektet varit i dessa avseenden? Den här studien försöker:a) beskriva hur projektet initierats och implementeratsb) värdera i vilken utsträckning projektets mål har uppnåtts samtc) identifiera och värdera funktionaliteten hos den samverkansmodellsom använtsErfarenheterna från projektet kan sammanfattas i sex punkter för vad som kan antas vara väsentligt för en långsiktig samverkan att fungera.1. Det behövs fora för kontinuerliga möten och en formaliserad organisation2. ”Kontaktpunkter” för att koordinera samarbetet spelar en viktig roll3. Högskolans ”leveransförmåga” måste förbättras4. ”Kulturkrockar” och en bristande ömsesidig tilltro5. Förmågan att definiera behov av samverkan behöver förbättras6. Långsiktig hållbar ekonomi
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Vid Norets barn- och utbildningsområde i Mora kommun bedrivits ett projektet kallat Noretnätet. Rektorsområdebestår av en större centralt belägen skola och tre s k byskolor, tillsammans innefattande åk 1-9, med en integrerad 6-årsverksamhet. I början av år 1998 lämnades en ansökan in om bidrag för ettkompetens- och skolutvecklingsprojekt till Utbildningsdepartementet. Ansökan beviljades och projektetNoretnätet kom att starta från och med höstterminen 1998. Målen för projektet formulerades som att:• Öka kunskapen om läroprocesser hos elever, föräldrar och personal• Öka medvetenheten kring den egna praktiken och ett språk för pedagogiskt arbete i arbetslag• Utveckla en organisation för arbete med elevernas inlärning• En större samstämmighet i undervisningsmönster mellan våra olika åldersgrupperI samband med att projektet startade bildades s k tvärgrupper. En samtalsledarutbildning startades och pågick parallellt med tvärgruppernas arbete. Arbetslagen har därefter inom projektets ram framför alltatt arbeta vidare med frågeställningar som de själva formulerat i form av s k ”småprojekt”.Syftet med utvärdering är:a) Att försöka värdera i vilken utsträckning arbetet bedrivits i linje med de mål som formulerades för projektet och om och i vilken utsträckning dessa har uppnåttsb) Att identifiera och diskutera faktorer som kan uppfattas väsentliga för att kunna genomföra ett framgångsriktskolutvecklingsprojektc) Att resultatet av utvärderingen skall kunna utgöra en lägesbeskrivning från vilken det för de inblandade aktörernaskall vara möjligt att formulera riktlinjer för ett fortsatt utvecklingsarbeteUtvärderingen bygger dels på tre tidigare genomförda delutvärderingar, och dels på data som insamlatsför att kunna komplettera dessa. För att komplettera denna information insamlades ytterligare data slutetav vårterminen 2001. Utvärderingen bygger således på ett tämligen omfattande empiriskt material som omfattar hela projektperioden. Tolkningsbasen är vad man skulle kunna kalla en konstruktivistisk idé om att de data som finns tillgängliga tillsammans skall kunna ”vävas” samman till en mer eller mindresammanhållen bild, en av flera möjliga, av det aktuella projektets samlade verksamhet.Det förefaller som att ett tämligen omfattande arbete har lagts ner på att skapa en ökad medvetenhet och kunskap om lärprocesser. Den sammanvägda bedömningen är att verksamheten i projektet på den punkten, i förhållande till de förutsättningar som funnits, bedrivits på ett sådant sätt att en ökad medvetenhet hos personalen om de lärprocesser som sker i skolan möjliggjorts. Detta bör även på ett konkret sätt ha kommit eleverna till del och förhoppningsvis innebär det att även deras medvetenhet omlärandet kommer att öka. Även om det från en del håll uttrycks tveksamheter att medvetenheten runt den egna praktiken och ett pedagogiskt språk verkligen påverkats på ett positivt sätt. En del av svårigheten tycks just vara att kunna upptäcka vad som sker, vilket t ex till en del kan förklaras av att det rör sig om förhållandevis långsamma processer. Däremot verkar resultatet vad gäller att involvera föräldrarna inte ha utvecklats särskilt långt. Bedömningen är ändå att projektet bedrivits på ett sådant sätt attdet har haft en riktning väl i linje med målet att öka medvetenheten om den egna praktiken och att utvecklaett pedagogiskt språk. Vad gäller målet att skapa en organisation för arbetet med elevernas lärandehar detta varit inriktat på att klara de behov som Noretnätet gett upphov till och som det framstår inte som ett försök att i första hand skapa en mera permanent organisatorisk förändring. Slutsatsen bliratt Noretnätet ändå indirekt kommit att visa på vägar för att finna en organisatorisk form som gör det möjligt att bygga in ett kontinuerligt skolutvecklingsarbete och sett från en sådan utgångspunkt kanverksamheten sägas ligga i linje med det mål som sattes upp. De slutsatser man kan dra om att projektet har gett en större samstämmighet i undervisningsmönster mellan olika åldersstadier är att de är en frågeställning som varit föremål för tämligen omfattande diskussioner. Projektets verksamhet förefallerdärför även på den här punkten i huvudsak ha legat i linje med det i sammanhanget aktuella målet.Sammantaget uppfattas verksamheten i Noretnätet för samtliga fyra mål haft den ”riktning” som målenangav. Med tanke på målens konstruktion är det inte möjligt att ha någon uppfattning i vilken grad målen uppnåtts.Vad gäller Noretnätet förefaller detta i hög grad ha varit ett Top-down initierat projekt, men samtidigt med en relativt stark strävan till att när detta initierats kan ges en tydlig Bottom-up rikting. Skolledningensroll berörs sparsamt i de utsagor som projektdeltagarna gör och kritik framkommer endast i någotenstaka fall. Möjligen kan det ändå tolkas som att skolans ledning varit relativt framgångsrika med attinitiera projektet och även med att lägga över ansvaret på dess genomförande till projektdeltagarna.Frågan om tid, eller snarare bristen på tid, är i skolutvecklingssammanhang en ständigt återkommandefrågeställning. Att förändra och utveckla organisationer och deras verksamhet kräver också tid både för att initieras, implementeras och inte minst för att institutionaliseras. Vad som framstår som lite uniktmed projektet Noretnätet är att skolledningen verkar att på allvar försöka organisera verksamheten så att det frigörs tid för att kunna arbeta med projektet. Genom att Noretnätet fick utrymme att fortsättasin verksamhet ytterligare ett läsår har detta möjliggjort att en del effekter visat sig på ett sätt som annars sannolikt inte hade varit möjligt. De s k samtalsledarna har haft en viktig roll, men kan också antasha varit olika framgångsrika med att utöva sin roll, men att det ändå finns skäl att tro att de på ett personligt plan har varit utvecklande att ikläda sig denna roll. Om ingen tar denna roll riskerar ett skolutvecklingsprojektav det här slaget att bli ett skrivbordskonstruktion. De s k ”småprojekten” framstårsom en av de stora poängerna med projektet Noretnätet. Genom att så tydligt koppla dessa mindreutvecklingsprojekt till de ordinarie arbetslagen har detta samtidigt möjliggjort en vardagsnära skolutvecklingsprocess.”Småprojekten” startas som en utveckling och fördjupning av projektet genom önskemålfrån personalen. Sammanfattningsvis framstår de s k ”småprojekten” som ett viktigt uppslag tillhur skolutvecklingsarbete i en mera generell mening kan bedrivas på ett framgångsrikt sätt.Det projekt som en gång för tre år sedan började med, som en del ansåg, tämligen abstrakta idéer har så småningom tagit form och har i hög grad omvandlats till en konkret och i vardagen påtaglig verksamhet.En intressant frågeställning är naturligtvis i vilken utsträckning som vad som skett som kan tillskrivasNoretnätet och vad som ändå skulle ha inträffat. Det är naturligtvis omöjligt att besvara en sådanfråga, men att det ändå kan vara värt att något reflektera över tänkbara svar. Det förefaller lika orimligt att påstå att inget kan tillskriva projektets verksamhet, som att all utveckling beror på detta. Den tidsom ställts till förfogande, vilket det samtidigt förefaller finnas stor enighet om att detta varit betydelsefullt, de samtal som därmed initieras, de verksamheter som startats i de s k ”småprojekten” talar ändåstarkt för att projektet har spelat en viktig roll för det utvecklingsarbete som skett. Noretnätet har därmed skapat en utmärkt bas för att kunna gå vidare mot en fortsatt positiv utveckling av verksamheteninom Norets barn- och utbildningsområde.
Resumo:
Este trabalho analisou quais são os principais determinantes do endividamento das empresas brasileiras. A principal contribuição em relação aos trabalhos já publicados está relacionada à desagregação dos tipos de endividamento de acordo com a moeda (dívida em moeda local, dívida em moeda estrangeira e dívida sinteticamente local através do hedge), esclarecendo os principais determinantes do endividamento das empresas, de acordo com o tipo empregado, num ambiente de alta volatilidade cambial. O entendimento de tal dinâmica interessa não apenas à academia, mas principalmente aos administradores de empresas em suas decisões sobre estrutura de capital bem como aos participantes do mercado financeiro nos papéis de assessores dos seus clientes. Outra importante contribuição do trabalho, já no aspecto metodológico, foi o uso de Dados em Painel para testarmos quais características determinam a utilização de um ou outro tipo de endividamento no Brasil, de acordo com as principais teorias de estrutura de capital na literatura e comparando os resultados com as expectativas de cada uma dela. Nossa base de dados foi estruturada com empresas brasileiras não financeiras, utilizando-se da ferramenta Economática bem como da análise cuidadosa das demonstrações financeiras anuais disponibilizadas na CVM, para os anos de 2006 a 2009. Os resultados encontrados indicam a significância e consistência dos coeficientes de tamanho da empresa (positivo), oportunidade de crescimento (negativo) e lucratividade (negativo), em linha com as teorias de “Static Trade-Off”, “Costly Monitoring & Agency” e “Pecking Order”. No nível desagregado, nossos modelos encontraram resultados comuns ao caso agregado, mas também fatores únicos, como receitas e caixa em moeda estrangeira, que determinam o tipo e o nível do endividamento, corroborando com a teoria de “Risk Management”, e confirmando alguns dos pressupostos de Allayannis e Brown (2003).
Resumo:
Nas últimas décadas o conhecimento florístico e taxonômico sobre a família Solanaceae no Rio Grande do Sul tem recebido incremento significativo de informações. Dos gêneros com espécies nativas, Bouchetia, Calibrachoa, Nicotiana, Nierembergia, Petunia e Solanum já foram alvo de revisões. Visando complementar o estudo desta família no Estado, foram estudados os gêneros Acnistus, Athenaea, Aureliana, Brunfelsia, Capsicum, Cestrum, Dyssochroma, Grabowskia, Lycianthes, Solandra e Vassobia, além das espécies do gênero Solanum seção Pachyphylla (Cyphomandra sensu lato). Foram catalogadas 22 espécies nativas, sendo três destas, novas citações de ocorrência. Para os onze primeiros gêneros foram identificados 19 espécies, dos quais cinco são de ocorrência restrita (Athenaea picta, Dyssochroma longipes, Grabowskia duplicata, Lycianthes rantonnei e Solandra grandiflora). A seção Pachyphylla do gênero Solanum está representada por três espécies. Dessa forma, foram atualizados os dados quali e quantitativos sobre a participação da família Solanaceae na flora sul-riograndense. Para cada gênero e para cada táxon específico foram elaboradas descrições, e acrescentados dados sobre fenologia, hábitat, comentários pertinentes e mapas de ocorrência. Chaves analíticas para identificação das espécies, quando mais de uma, também foram elaboradas. A revisão de doze herbários regionais possibilitou a elaboração de uma sinopse taxonômica e de uma chave analítica para identificação dos gêneros presentes no Estado. Dos 27 gêneros confirmados, 22 têm espécies nativas. O número de espécies nativas é de 114 e o de introduzidas, cultivadas ou assilvestradas, é até o momento 26.
Resumo:
Foram estudados os grãos de pólen de 12 gêneros e 41 espécies de Solanaceae ocorrentes na Reserva do Parque Estadual das Fontes do Ipiranga: Acnistus arborescens (L.) Schlecht., Athenaea picta (Mart.) Sendtn., Brunfelsia latifolia Benth., Brunfelsia pauciflora (Cham. & Schlecht.) Benth., Capsicum flexuosum (L.) Sendtn., Capsicum villosum (L.) Sendtn., Cestrum amictum (L.) Schlecht., Cestrum corymbosum (L.) Schlecht., Cestrum lanceolatum (L.) Miers, Cestrum schlechtendalii (L.) G. Don, Cestrum sendtnerianum (L.) Mart. ex Sendtn., Cyphomandra diploconos Sendtn., Cyphomandra velutina Sendtn., Dyssochroma viridiflora (Sims) Ducke, Nicotiana langsdorffii (Weinm.) Roem. & Schult., Physalis peruviana L., Physalis viscosa L., Sessea brasiliensis Tol., Solandra grandiflora Sw, Solanum americanum Mill., Solanum atropurpureum Schrank., Solanum bullatum Vell., Solanum capsicoides Allion., Solanum cernuum Vell., Solanum concinnum Schott ex Sendtn., Solanum didynum Dun., Solanum diflorum Vell., Solanum excelsum St. Hil. ex Dun., Solanum granuloso-leprosum Dun., Solanum hoehnei Morton, Solanum inaequale Vell., Solanum inodornum Vell., Solanum lycocarpum St. Hil. ex Dun., Solanum mauritianum Scop., Solanum paniculatum L., Solanum rufescens Sendtn., Solanum sisymbriifolium Lam., Solanum swartzianum Roem. & Schult., Solanum vaillantii Dun., Solanum variabile Mart., Solanum viarum Dun. São apresentadas descrições para todas as espécies estudadas, ilustrações, observações e seis chaves polínicas.