AGROENERGETIC ASSESSMENT OF THE EFFICIENCY OF CULTIVATION OF ONE-YEAR FODDER CROPS FOR SENAGE IN THE NORTH

2020 ◽  
pp. 63-68
Author(s):  
S. Pavlova ◽  
E. Pestereva ◽  
G. Zakharova
Keyword(s):  
2001 ◽  
Vol 41 (3) ◽  
pp. 344-364 ◽  
Author(s):  
Cally L. Waite

The community of Oberlin, Ohio, located in the northeast corner of the state, holds an important place in the history of the education of Black Americans. In 1834, one year after its founding, the trustees of Oberlin College agreed to admit students, “irrespective of color.” They were the only college, at that time, to adopt such a policy. Oberlin's history as the first college to admit Black students and its subsequent abolitionist activities are crucial to the discussion of Black educational history. Opportunities for education before the Civil War were not common for most of the American population, but for Blacks, these opportunities were close to nonexistent. In the South, it was illegal for Blacks to learn to read or write. In the North, there was limited access to public schooling for Black families. In addition, during the early nineteenth century there were no Black colleges for students to attend. Although Bowdoin College boasted the first Black graduate in 1827, few other colleges before the Civil War opened their doors to Black students. Therefore, the opportunity that Oberlin offered to Black students was extraordinarily important. The decision to admit Black students to the college, and offer them the same access to the college curriculum as their white classmates, challenged the commonly perceived notion of Blacks as childlike, inferior, and incapable of learning.


Author(s):  
Stuart H. Gage

This chapter examines the spatial and temporal variability and patterns of climate for the period 1972–1991 in the North Central Region of North America (NCR). Since the mid-1970s, climate has become more variable in the region, compared to the more benign period 1950–1970. The regional perspective presented in this chapter characterizes the general climatology of the NCR from 1972 to 1991 and compares the climate to a severe drought that occurred in 1988. This one-year drought was one of the most substantial in the region’s recent history, and it had a significant impact on the region’s agricultural economy and ecosystems. Petersen et al. (1995) characterize the 1988 drought with respect to solar radiation, and Zangvil et al. (2001) consider this drought from the perspective of a large-scale atmosphere moisture budget. A major reason for the seriousness of the drought in 1988 was the fact that May and June were unusually dry and hot (Kunkel and Angel 1989). Drought is defined as a condition of moisture deficit sufficient to adversely affect vegetation, animals, and humans over a sizeable area (Warwick 1975). The condition of drought may be considered from a meteorological, agricultural, and hydrologic perspective. Meteorological drought is a period of abnormally dry weather sufficiently prolonged to a point where the lack of water causes a serious hydrologic imbalance in the affected area (Huschke 1959). Agricultural drought is a climatic digression involving a shortage of precipitation sufficient to adversely affect crop production or the range of production (Rosenberg 1980). Hydrologic drought is a period of below-average water content in streams, reservoirs, groundwater aquifers, lakes, and soils (Yevjevich et al. 1977). All of these drought conditions are mutually linked. The objectives of this chapter are to (1) address the issues of climatic spatial scale to quantify variability of climate in the NCR, (2) examine the characteristics of the 1988 drought as it relates to characteristics of an ecoregion, (3) illustrate a means to quantify drought through a potential plant stress index, and (4) examine the link of regional drought to ecosystem processes. This analysis will provide background and methodology for ecologists, agriculturalists, and others interested in spatial and temporal characterization of climate patterns within large geographic regions.


1999 ◽  
Vol 39 (1) ◽  
pp. 647 ◽  
Author(s):  
G.A. Oliver ◽  
S.J. Fisher

The effects and persistence of non-water-based drilling fluids discharged into the marine environment were investigated at three locations on Western Australia's North West Shelf (NWS), namely the North Rankin 4A' (NRA) drilling platform, the Wanaea–6 production well and the Lynx–la exploration well. For the multiple-well drilling operation at NRA, acute biological effects at the completion of drilling were restricted to within 400 m in the direction of the prevailing current. High total petroleum hydrocarbon (TPH) concentrations within the NRA cuttings pile persisted between 1991 and 1993. Away from the cuttings pile itself, a consistent downward trend in TPH concentrations was evident, indicating an approximate half-life of one year for surface sediments. Three years after the completion of drilling at Wanaea–6, biological effects appeared to be limited to within 100 m of the cuttings discharge point, with background concentrations of TPH and trace metals occurring near 1,200 m in the direction of the prevailing current. Sediment hydrocarbon concentrations greater than 1 mg/kg were found to be restricted to within 200 m of the cuttings discharge point. Dramatic reductions in TPH and barium concentrations occurred in the 12-month period between the completion of drilling and the follow- up survey at Lynx–la. The reductions are attributed to sediment dispersal mechanisms which appear to play a major role in reducing sediment TPH and trace metal concentrations in mid-shelf water depths (70–80 m) on the NWS. The installation and presence of subsea production facilities may result in sediment redistribution and changed dispersal mechanisms, complicating the interpretation of the presence of contaminants within sediments.


2002 ◽  
Vol 6 (2) ◽  
pp. 59-62 ◽  
Author(s):  
Andrew Fowell ◽  
Ilora Finlay ◽  
Ros Johnstone ◽  
Lindsey Minto

The primary goal of this project was to improve the care of the dying patient through the introduction of a pre-developed integrated care pathway (ICP), while concurrently seeking to determine the feasibility of implementing a pre-developed ICP throughout Wales. Thirty-eight teams, reflecting four care settings crossing the statutory and voluntary sectors, participated in the project. Training was delivered on a regional basis in the north, south and middle areas of Wales. Participating teams' implementation of the ICP was monitored for one year. Support was provided by quarterly regional meetings, a project website, quarterly newsletters and a telephone helpline. After one year, 80% of the 38 teams participating in the project were using the ICP in their workplace. A further 10% were prepared and ready to use the ICP when a suitable patient was referred, while only 10% were unable to implement the ICP. The feasibility of implementing a pre-developed care pathway for the last days of life across different care settings and sectors throughout Wales was clearly demonstrated. The central collection and analysis of variance sheets established a baseline measure of palliative care quality, facilitated local and national benchmarking, and indicated future directions for research and development to improve the care of the dying patient in Wales.


1964 ◽  
Vol 5 (37) ◽  
pp. 61-75 ◽  
Author(s):  
Calvin J. Heusser ◽  
Melvin G. Marcus

AbstractLemon Creek Glacier served as the focus of attention of the Juneau Ice Field Research Project from 1953 through 1958. During the International Geophysical Year, it represented one of the glaciological stations in the North American network. This paper presents some of the results of these studies, its purposes being (1) to discuss the 1953–58 annual hydrological budgets, and (2) to test Nielsen’s equations for the equilibrium glacier using 1957 and 1958 movement and hydrological data.It is found that each budget year for the period studied shows a deficit, except 1954–55 which registered a pronounced surplus. The net deficit amounts to 10.32×106 m.3 of water. The 1956–57 budget was only slightly negative (0.82×106m.3) but that for 1957–58 was strongly negative (8.96×106 m.3). Surface flow measurements were made along five transverse profiles, two of which were plotted over one full year. It is believed that the one-year measurements provide a more accurate and realistic picture of glacier flow than is normally available from short summer surveys. Thu glacier appears to be close to equilibrium and to behave in the manner predicted by Nielsen’s theory of equilibrium flow.


1992 ◽  
Vol 40 (2) ◽  
pp. 319-343 ◽  
Author(s):  
Jim Macbeth

Just after dawn, an English couple in their 30's haul up their anchor and motor across the stillness of Suva harbour. The hurricane season is approaching and they are embarking on the 2–3 week trip to Bay of Islands New Zealand for the southern summer. Three months earlier, as their yacht lay aground on the fringing reef of uninhabited Suvarov atoll, they wondered if they'd ever reach New Zealand. But, with the help of other cruisers and lucky tides their steel 36 footer was clear and safe in under 24 hours. What was to be a one year trip around the north Atlantic was now happily way off course in the South Pacific and likely to remain so for some time. That is just a glimpse of one small aspect of ocean cruising, the subculture of interest here. However, throughout the paper the ethnography of cruising is developed further. A model is proposed to show how individuals come to share the subculture ideology and then to participate in the lifestyle. Subsequently, 1 will place ocean cruising in the context of subculture theory by expanding the ethnography and relating cruising to other subcultures.


2011 ◽  
Vol 41 (2) ◽  
pp. 269-286 ◽  
Author(s):  
Gaël Forget ◽  
Guillaume Maze ◽  
Martha Buckley ◽  
John Marshall

Abstract The seasonal cycle in the volume and formation rate of Eighteen Degree Water (EDW) in the North Atlantic is quantified over the 3-yr period from 2004 to 2006. The EDW layer is defined as all waters that have a temperature between 17° and 19°C. The study is facilitated by a synthesis of various observations—principally Argo profiles of temperature and salinity, sea surface temperature, and altimetry—using a general circulation model as an interpolation tool. The winter increase in EDW volume is most pronounced in February, peaking at about 8.6 Svy, where 1 Svy ≈ 3.15 × 1013 m3 corresponding to a 1 Sv (Sv ≡ 106 m3 s−1) flow sustained for one year. This largely reflects winter EDW formation due to air–sea heat fluxes. Over the remainder of the year, newly created EDW is consumed by air–sea heat fluxes and ocean mixing, which roughly contribute ⅔ and ⅓, respectively. The authors estimate a net annual volume increase of 1.4 Svy, averaged over the 3-yr period. It is small compared to the amplitude of the seasonal cycle (8.6 Svy) and annual formation due to air–sea fluxes (4.6 Svy). The overall EDW layer volume thus appears to fluctuate around a stable point during the study period. An estimate of the full EDW volume budget is provided along with an uncertainty estimate of 1.8 Svy, and largely resolves apparent conflicts between previous estimates.


2020 ◽  
Vol 22 (2) ◽  
Author(s):  
Maserapelo Gladys Serapelwane ◽  
Eva Mofatiki Manyedi

A lack of supportive supervision of operational managers is a disturbing phenomenon in the management of primary healthcare facilities in developing countries. The North West province of South Africa is not exempt from a lack of supportive supervision of operational managers. This occurs despite the burden of disease and a high demand for the provision of quality services. The study explored and described experiences of operational managers regarding supportive supervision by local area managers in the facilities of the North West province. Operational managers’ perceptions of how supportive supervision can be facilitated effectively were also described. A qualitative, descriptive, exploratory, and contextual study was conducted. The population comprised operational managers who worked for at least one year in the primary healthcare facilities. Purposive sampling was used and fundamental ethical principles underlying the protection of human participants were adhered to. Four semi-structured in-depth focus group interviews were conducted in the four districts of North West. The analysis of data followed Tesch’s method of content analysis. The first theme that surfaced concerned the participants’ experiences of factors related to compromised critical aspects of supportive supervision. The second theme embodied experiences of factors related to a lack of the qualities and competencies of a supportive supervisor. Perceptions of how effective supportive supervision of operational managers can be facilitated constituted the third theme. Based on the results, it was apparent that supportive supervision of operational managers in primary healthcare facilities should be enhanced.


2020 ◽  
Author(s):  
Yeray Santana-Falcón ◽  
Pierre Brasseur ◽  
Jean Michel Brankart ◽  
Florent Garnier

<p>Satellite-derived surface chlorophyll data are daily assimilated into a three-dimensional 24 member ensemble configuration of an online-coupled NEMO-PISCES model for the North Atlantic ocean. A one-year multivariate assimilation experiment is performed to evaluate the impacts on analyses and forecast ensembles. Our results demonstrate that the integration of data improves surface analysis and forecast chlorophyll representation in a major part of the model domain, where the assimilated simulation outperforms the probabilistic skills of a non-assimilated analogous simulation. However, improvements are dependent on the reliability of the prior free ensemble. A regional diagnosis shows that surface chlorophyll is overestimated in the northern limit of the subtropical North Atlantic, where the prior ensemble spread does not cover the observation's variability. There, the system cannot deal with corrections that alter the equilibrium between the observed and unobserved state variables producing instabilities that propagate into the forecast. To alleviate these inconsistencies, a one-month sensitivity experiment in which the assimilation process is only applied to model fluctuations is performed. Results suggest the use of this methodology may decrease the effect of corrections on the correlations between state vectors. Overall, the experiments presented here evidence the need of refining the description of model's uncertainties according to the biogeochemical characteristics of each oceanic region.</p>


Author(s):  
Arne So̸rli ◽  
Kyrre Langnes ◽  
Geert Laagland ◽  
Mike Hastings

An integrated machine condition monitoring system was developed, installed, tested, commissioned and successfully operated on a floating production, storage and offloading vessel (FPSO) in the North Sea. This system combines an existing vibration and process monitoring system with focused performance monitoring capability that has been implemented with the cooperation of the oil company end-user, a thermodynamics specialist consultant and a monitoring system supplier. Implementation of this integrated monitoring system strategy with advanced performance monitoring is partly based on the end-user’s requirements to optimize their operation and maintenance functions to improve competitiveness. The system has already been in use for one year and has demonstrated the ability to detect faults at an early stage of development, such as the compressor degradation and gas turbine fouling described in this paper. The same system has also been implemented in other oil & gas and power applications around the world with similar, positive results.


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