8,295 research outputs found

    Livestock herds, overgrazing and range degradation in Zimbabwe: How and why do the herds keep growing?

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    This paper looks at African livestock herds in Zimbabwe over the period 1890-1980. The focus is on the livestock system in the tribal areas where, under communal land use, there has been long-term concern with environmental deterioration Zimbabwe was chosen because it is one of the few African countries for which reasonably accurate historical data are available regarding African (common range) as opposed to Europen (closed range) herd development. In this paper, African owned cattle in Zimbabwe, African and European cattle holdings, African and European cattle and African smallstock African and European cattle drought, and African population, cattle and cultivation are illustrated

    The Epidemiology of Multiple Sclerosis in Scotland: Inferences from Hospital Admissions

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    PMCID: PMC3029296This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited

    The environment and host haloes of the brightest z~6 Lyman-break galaxies

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    By studying the large-scale structure of the bright high-redshift Lyman-break galaxy (LBG) population it is possible to gain an insight into the role of environment in galaxy formation physics in the early Universe. We measure the clustering of a sample of bright (-22.7<M_UV<-21.125) LBGs at z~6 and use a halo occupation distribution (HOD) model to measure their typical halo masses. We find that the clustering amplitude and corresponding HOD fits suggests that these sources are highly biased (b~8) objects in the densest regions of the high-redshift Universe. Coupled with the observed rapid evolution of the number density of these objects, our results suggest that the shape of high luminosity end of the luminosity function is related to feedback processes or dust obscuration in the early Universe - as opposed to a scenario where these sources are predominantly rare instances of the much more numerous M_UV ~ -19 population of galaxies caught in a particularly vigorous period of star formation. There is a slight tension between the number densities and clustering measurements, which we interpret this as a signal that a refinement of the model halo bias relation at high redshifts or the incorporation of quasi-linear effects may be needed for future attempts at modelling the clustering and number counts. Finally, the difference in number density between the fields (UltraVISTA has a surface density ~1.8 times greater than UDS) is shown to be consistent with the cosmic variance implied by the clustering measurements.Comment: 19 pages, 8 figures, accepted MNRAS 23rd March 201

    Long term minimum tillage investigations, Stubble management, Deep ripping

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    Direct drilling Long term minimum tillage investigations (1) Continuous cropping – 77A16, 77A18, 77MT15, 77WH17, 77WH13, 78M25. (2) Rotational cropping – 77A43, 77E52, 77M35, 77M56, 77MT51, 77WH8. Stubble management – 79M7, 79WH6, 82M34, 84M1, 82LG4, 82LG46 (82KD1). Deep ripping - 82M35 in Minimum Tillage Rotation section also contains a deep ripping treatment. 77WH17, 80A44, 80NO46, 81M45, 81NO3, 81NO4, 82GE37, 82GE38, 82M30, 82M46, 82M60, 82ME38, 82N32, 82WH49, 84E24, (84C42, 84C43, 84C44, 84C45, 84C46) Eradu Sandplain – ECRS, 84E23, 84E24, 84JE43, 84JE44, 84LG37, 84M38, 84NO58, 84WH2, 84WH3, 84WH39. Additional deep ripping research is included in summaries by W. Bowden, D. Tennant, J. Hamblin, J. Wilson

    Unauthorized Practice or Untenable Prohibitions: Refining and Redefining UPL

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    An extraordinarily number of Americans either cannot afford or cannot find lawyers to assist them on civil legal matters. And an increasing number of Americans turn either to on-line apps or to nonlawyer professionals whose practices may overlap in whole or in part with what lawyers do. Although individuals receive much needed assistance, these alternative providers often confront allegations of committing the unauthorized practice of law. Unfortunately, the rules regarding the unauthorized practice of law (β€œUPL”) are both outdated and extraordinarily ambiguous. Moreover, UPL issues regarding alternative providers are distinct from questions concerning whether nonlawyers should be entitled to be law firm partners, own law firms, or issues arising in multijurisdictional practice. The question here is how to define what nonlawyers and entities that are not law firms can and should be able to do entirely on their own. This Article discusses both past and present definitions of UPL and the significant problems created by those definitions. It also presents a new approach to defining UPL that would permit a substantial increase in access to both legal information and services by allowing certain nonlawyers and computer apps to provide much needed assistance

    Unauthorized Practice or Untenable Prohibitions: Refining and Redefining UPL

    Get PDF
    An extraordinarily number of Americans either cannot afford or cannot find lawyers to assist them on civil legal matters. And an increasing number of Americans turn either to on-line apps or to nonlawyer professionals whose practices may overlap in whole or in part with what lawyers do. Although individuals receive much needed assistance, these alternative providers often confront allegations of committing the unauthorized practice of law. Unfortunately, the rules regarding the unauthorized practice of law (β€œUPL”) are both outdated and extraordinarily ambiguous. Moreover, UPL issues regarding alternative providers are distinct from questions concerning whether nonlawyers should be entitled to be law firm partners, own law firms, or issues arising in multijurisdictional practice. The question here is how to define what nonlawyers and entities that are not law firms can and should be able to do entirely on their own. This Article discusses both past and present definitions of UPL and the significant problems created by those definitions. It also presents a new approach to defining UPL that would permit a substantial increase in access to both legal information and services by allowing certain nonlawyers and computer apps to provide much needed assistance

    Tillage investigations.

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    77A16, red/brown sandy loam - York gum. 77WH17, yellow clayey-sand (Wongan loamy sand). 77M13, red sandy clay loam (Salmon Gum, Gimlet). 77Mt15, gravelly loamy sand/sandy loam - forest soil. 77A43 brown loamy sand/sandy loam - jam country. 77WH88, grey loamy sand over gravel at 50 cm - Elphin soil series – Mallee. 77M56, red sandy clay loam - salmon gum, Gimlet. 82M35, Loamy sand/sandy loam – Mallee. 77E52, fine white sand over gravel at 40 cm. 85SG28, grey-brown calcareous Earth - Kumarl – SGRS. 84M064, heavy land management systems - medium rainfall area. 84M063, heavy land management systems - ne wheat belt - continuous wheat additional heavy land long term direct drill trials, 84KA28. Minimum tillage, direct drilling, modified combine investigations. 87E35, White Grey Fleming Sandplain over gravel varying from 20 40 cm. 87E36, Fleming Sandplain Alongside 87E35. 87E37, Fleming Sandplain near E35, 36. 87M76, 87M77 Depth of cultivation with modified combine, and deep ripping. 87WH52 Wongan Loamy Sand - Depth of cultivation during Seeding, and Deep Ripping. 87Na81, 87Na 84 cultivate, direct drill, and speed of seeding. 86SG27, direct drilling, reduced tillage and conventional at two times of seeding with and without flexi coil. 87WH45, direct drill, scarifying, disc ploughing, chisel ploughing at two depths and deep ripping. 79WH6, grey and yellow loamy sand with gravel. 79M7, yellow loamy sand - Mallee scrub 82M34, salmon gum/gimlet clay loam. 84M1, stubble effect on heavy land - salmon gum soil – MRS. 85Ba32, deep ripping yellow sand/yellow loamy sand – BARS. 886LG67, 886LG68, DD scarifying and depth of ripping 2GE37, 82GE38, yellow sandplain - Naraling lupin/wheat rotation (2 blocks). 82M60, Semi Wodgil - MRS old lease block. 87M5, species and cultivar response to deep ripping on acidic yellow sandplain. 87M78, ripping, two times of seeding, three wheat varieties - Mallee soil, MRS. 86Mo28 Cultivation and Gypsum on Hard Setting Clay Loam - A. Tonkin, Coomberdale. 87Mo1, 87Mo2, 87Mo3, deep ripping on sands in the Minyulo Brook catchment west of Moora - Farmers Brennan and Edgar. 87SG31, Circle Valley and over clay. Pasture. 77WH17, yellow clayey sand (Wongan loamy sand). 82WH49, times of ripping in a 2 pasture: 2 wheat rotation - Wongan loamy sand. 84WH39, two machines at two speeds of ripping - Wongan loamy sand. 85WH41, depth of ripping by shank spacing. 85WH62, depth of ripping by shank spacing - Wongan loamy sand. 86WH4, two times of seeding, with and without ripping, 7 rates of nitrogen, one rate N applied late. 86WH43, deep ripping response by wheat and barley varieties - Wongan loamy sand. 86WH66, time of ripping, pre and post seeding - Wongan loamy sand. 87WH55, ripping times pre and post seeding with two seeding rates. MISCELLANEOUS TRIALS. 86M79, fallowing and deep ripping with two times of seeding on sandy clay loam. 87M2, banding superphosphate at depths below the seed - Newland, yellow sandplain, Carrabin - Jarvis and Bolland. 81SG1, Kumarl soil - SGRS - crop/fallow rotation. 87SG32 and 87SG33, rate of seeding-wheat on Kumarl soil

    Long term minimum tillage investigations, stubble management techniques, deep ripping and seeding machine comparisons.

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    77 A 16, red/brown sandy loam. 77 WH 17, yellow clayey-sand (Wongan loamy sand). 77 M 13, red sandy clay loam (salmon gum, gimlet). 78 M 25, Yellow acid loamy sand (Wodgil). 77 Mt 15 Gravelly loamy sand/sandy loam - forest soil 77 E 18, fine white sand over fine sandy clay. 77 A 43, Brown loamy sand/sandy loam - Jam country.77 WH 88, Grey loamy sand over gravel at 50 cm - Elphin soil series – Mallee. 77 M 56, Red sandy clay loam - Salmon Gum, Gimlet. 82 M 35, Loamy sand/sandy loam – Mallee. 77 E 52, Fine white sand over gravel at 40 cm. 85 SG 28, Grey-brown calcareous earth - Kumarl – SGRS. 77 Mt 51, Gravelly sandy loam - forest soil. 79 WH 6, Grey and yellow loamy sand with gravel. 79 M 7, Yellow loamy sand - Mallee scrub. 82 M 34, Salmon Gum/Gimlet clay loam. 84 M 1, Stubble effect on heavy land - Salmon Gum soil – MRS. 82 M 35, deep ripping. 82 GE 37, 82 GE 38, Yellow sandplain - Naraling - Lupin/Wheat Rotation. 84 C 72, Eradu Sandplain – ECRS. 85 C 84, Eradu Sandplain ECRS. 77 WH 17, Yellow clayey sand (Wongan loamy sand). 84 WH 2, Species response to ripping - Wongan loamy sand - residual effects. 84 WH 3 - ripping and re-compaction of ripped soil - Wongan loamy sand. 85 WH 36, 85 WH 37, 85 WH 38, 85 WH 39, deep ripping four soil types – WHRS. 85 WH 40, deep ripping and scarifying comparisons with direct drill on four soil types. 85 WH 41, depth of ripping by shank spacing. 82 Mo30, yellow loamy sand - Dalwallinu - Taywood farms. 79 MO 19, deep ripping in a pasture/wheat rotation - heavy land - Nixon, Kalannie. 81 M 53, yellow loamy sand - Mallee/Wodgil – MRS. 82 Me 38, Residual effect of deep ripping in pasture/wheat/lupin rotation, yellow loamy sand – Koorda. 85 Me 57, 85 Me 58, 85 Me 59, 85 Me 60, 85 Me 61, 85 Me 62, ripping responses on paddocks with different cropping histories Crosthwaite, Holleton. 80 NO 46, yellow loamy sand - Tamma - R. Reid, Yorkrakine. 83 NO 69, yellow loamy sand - Tamma - Reid, Yorkrakine. 82 NO 48, 82 NO 49, yellow loamy sand - Tamma – Yorkrakine. 84 Ba 32, deep ripping yellow sand/yellow loamy sand – BARS. 85 Ba 33, deep ripping white sand/pale yellow sand – BARS. 85 Ba 4la, deep ripping and scarifying comparisons with direct drill on different soil types. 85 Ba 4lb, deep ripping and nutrition - deep very poor white sand – BARS. 84 E 24, deep white sand over gravel – EDRS. 85 E 29, cultivation depths and direct drilling machines - deep white sand – EDRS. 85 E 30, deep ripping and scarifying on Caitup soil – EDRS. 85 E 31, deep ripping and scarifying comparison with direct drill on four soil types. 85 TS 39, yellow sand/loamy sand, R and D Nottle, West Three Springs. Deep ripping pasture – Denbarker. 85 WH 42, yellow loamy sand – WHRS. 85 WH 43, yellow loamy sand – WHRS. 85 WH 44, yellow loamy sand – WHRS
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