STUDIES ON CLOVER YELLOW MOSAIC AND WHITE CLOVER MOSAIC VIRUSES

1961 ◽  
Vol 39 (3) ◽  
pp. 655-665 ◽  
Author(s):  
Michael J. Pratt
Keyword(s):  
New Zealand ◽  
North America ◽  
White Clover ◽  
Western North America ◽  
The World ◽  
Cross Absorption ◽  
Differential Hosts ◽  
The Relationship ◽  
Different Parts

Two viruses, clover yellow mosaic (CYMV) and white clover mosaic (WCMV), were separated from mixed natural infections of various clovers by inoculation of differential hosts. The host reactions of four CYMV and two WCMV isolates were studied in detail. Precipitin tests showed that the two viruses are not related serologically. In cross-absorption tests different host reactions characterizing individual CYMV isolates were reflected in serological interactions; with WCMV isolates the relationship was less clearly defined. A comparison of isolates from different parts of the world by serological methods showed that CYMV is common in western North America, while WCMV occurs in Europe, North America, and New Zealand. Pea mottle and pea wilt viruses may be equated with CYMV and WCMV respectively.

scholarly journals Update on emissions and environmental impacts from the international fleet of ships. The contribution from major ship types and ports

2008 ◽  
Vol 8 (5) ◽  
pp. 18323-18384 ◽  
Author(s):  
S. B. Dalsøren ◽  
M. S. Eide ◽  
Ø. Endresen ◽  
A. Mjelde ◽  
G. Gravir ◽  
...  
Keyword(s):  
North America ◽  
Wet Deposition ◽  
Western Europe ◽  
Surface Ozone ◽  
Western North America ◽  
Ship Emissions ◽  
Low Latitudes ◽  
The World ◽  
Emission Modelling ◽  
The Impact

Abstract. A reliable and up-to-date ship emission inventory is essential for atmospheric scientists quantifying the impact of shipping and for policy makers implementing regulations and incentives for emission reduction. The emission modelling in this study takes into account ship type and size dependent input data for 15 ship types and 7 size categories. Global port arrival and departure data for more than 32 000 merchant ships are used to establish operational profiles for the ship segments. The modelled total fuel consumption amounts to 217 Mt in 2004 of which 11 Mt is consumed in in-port operations. This is in agreement with international sales statistics. The modelled fuel consumption is applied to develop global emission inventories for CO2, NO2, SO2, CO, CH4, VOC (Volatile Organic Compounds), N2O, BC (Black Carbon) and OC (Organic Carbon). The global emissions from ships at sea and in ports are distributed geographically, applying extended geographical data sets covering about 2 million global ship observations and global port data for 32 000 ships. In addition to inventories for the world fleet, inventories are produced separately for the three dominating ship types, using ship type specific emission modelling and traffic distributions. A global Chemical Transport Model (CTM) was used to calculate the environmental impacts of the emissions. We find that ship emissions is a dominant contributor over much of the world oceans to surface concentrations of NO2 and SO2. The contribution is also large over some coastal zones. For surface ozone the contribution is high over the oceans but clearly also of importance over western North America (contribution 15–25%) and western Europe (5–15%). The contribution to tropospheric column ozone is up to 5–6%. The overall impact of ship emissions on global methane lifetime is large due to the high NOx emissions. With regard to acidification we find that ships contribute 11% to nitrate wet deposition and 4.5% to sulphur wet deposition globally. In certain coastal regions the contributions may be in the range 15–50%. In general we find that ship emissions have a large impact on acidic deposition and surface ozone in western North America, Scandinavia, western Europe, western North Africa and Malaysia/Indonesia. For most of these regions container traffic, the largest emitter by ship type, has the largest impact. This is the case especially for the Pacific and the related container trade routes between Asia and North America. However, the contributions from bulk ships and tank vessels are also significant in the above mentioned impact regions. Though the total ship impact at low latitudes is lower, the tank vessels have a quite large contribution at low latitudes and near the Gulf of Mexico and Middle East. The bulk ships are characterized by large impact in Oceania compared to other ship types. In Scandinavia and north-western Europe, one of the major ship impact regions, the three largest ship types have rather small relative contributions. The impact in this region is probably dominated by smaller ships operating closer to the coast. For emissions in ports impacts on NO2 and SO2 seem to be of significance. For most ports the contribution to the two components is in the range 0.5–5%, for a few ports it exceeds 10%. The approach presented provides an improvement in characterizing fleet operational patterns, and thereby ship emissions and impacts. Furthermore, the study shows where emission reductions can be applied to most effectively minimize the impacts by different ship types.

Phagodrilus gen.nov. (Lumbriculidae): systematics and biology of a predaceous oligochaete from western North America

1988 ◽  
Vol 66 (10) ◽  
pp. 2304-2311 ◽  
Author(s):  
Dorothy McKey-Fender ◽  
William M. Fender
Keyword(s):  
North America ◽  
Lake Baikal ◽  
Reproductive System ◽  
Monotypic Genus ◽  
Western North America ◽  
The Relationship

The genus Phagodrilus (Lumbriculidae) is erected for Phagodrilus macnabi sp.nov., a predaceous worm with a paryngeo-esophageal region resembling that of Agriodrilus, a monotypic genus from Lake Baikal, often cited as a potential progenitor of the leeches. The pharynx or gizzard of Phagodrilus has the opposite dorsoventral orientation of its triangular section to that of Agriodrilus (apex dorsad in Phagodrilus, ventrad in Agriodrilus). While the latter appears closely related to Lamprodrilus in terms of its reproductive system, Phagodrilus resembles the Stylodrilus–Hrabea complex. These characteristics clearly indicate separate origins of the predatory habit and convergence of these two taxa, which suggests reexamination of the relationship between them and the leeches and branchiobdellids.

scholarly journals Optimizing Pharmacodynamic Target Attainment Using the MYSTIC Antibiogram: Data Collected in North America in 2002

2004 ◽  
Vol 48 (7) ◽  
pp. 2464-2470 ◽  
Author(s):  
Joseph L. Kuti ◽  
Charles H. Nightingale ◽  
David P. Nicolau
Keyword(s):  
Escherichia Coli ◽  
North America ◽  
Bacterial Species ◽  
Empirical Therapy ◽  
Target Attainment ◽  
The World ◽  
Dosing Regimens ◽  
Higher Doses ◽  
Initial Empirical Therapy ◽  
Different Parts

ABSTRACT The OPTAMA Program is intended to examine typical antimicrobial regimens used in the treatment of common nosocomial pathogens and the likelihood of these regimens attaining appropriate pharmacodynamic exposure in different parts of the world. A 5,000-subject Monte Carlo simulation was used to estimate pharmacodynamic target attainment for meropenem, imipenem, ceftazidime, cefepime, piperacillin-tazobactam, and ciprofloxacin against Escherichia coli, Klebsiella pneumoniae, Acinetobacter baumannii, and Pseudomonas aeruginosa. Standard dosing regimens from North America were used. Pharmacokinetic parameter variability was derived from existing healthy volunteer data, and MIC data came from the 2002 MYSTIC Program. Ciprofloxacin displayed the lowest target attainment against all bacterial species (41 to 46% for A. baumannii, 53 to 59% for P. aeruginosa, and 80 to 85% for the Enterobacteriaceae). Increasing the dose to 400 mg every 8 h did not significantly increase target attainment against nonfermenters. Piperacillin-tazobactam target attainments were similar to that of ceftazidime against all pathogens. Higher doses of both compounds were needed to achieve better target attainments against P. aeruginosa. Overall, meropenem, imipenem, and cefepime attained the highest probabilities of attainment against the Enterobacteriaceae (99 to 100%). The carbapenems appear to be the most useful agents against A. baumannii (88 to 92%), and these agents, along with higher doses of any of the β-lactams, would be the most appropriate choices for empirical therapy for P. aeruginosa infection. Given the lack of agreement between percent susceptibility and probability of target attainment for certain antimicrobial regimens, a methodology employing stochastic pharmacodynamic analyses may be a more useful tool for differentiating the most-optimal compounds and dosing regimens in the clinical setting of initial empirical therapy.

scholarly journals Update on emissions and environmental impacts from the international fleet of ships: the contribution from major ship types and ports

2009 ◽  
Vol 9 (6) ◽  
pp. 2171-2194 ◽  
Author(s):  
S. B. Dalsøren ◽  
M. S. Eide ◽  
Ø. Endresen ◽  
A. Mjelde ◽  
G. Gravir ◽  
...  
Keyword(s):  
North America ◽  
Wet Deposition ◽  
Western Europe ◽  
Surface Ozone ◽  
Western North America ◽  
Ship Emissions ◽  
Low Latitudes ◽  
The World ◽  
Emission Modelling ◽  
The Impact

Abstract. A reliable and up-to-date ship emission inventory is essential for atmospheric scientists quantifying the impact of shipping and for policy makers implementing regulations and incentives for emission reduction. The emission modelling in this study takes into account ship type and size dependent input data for 15 ship types and 7 size categories. Global port arrival and departure data for more than 32 000 merchant ships are used to establish operational profiles for the ship segments. The modelled total fuel consumption amounts to 217 Mt in 2004 of which 11 Mt is consumed in in-port operations. This is in agreement with international sales statistics. The modelled fuel consumption is applied to develop global emission inventories for CO2, NO2, SO2, CO, CH4, VOC (Volatile Organic Compounds), N2O, BC (Black Carbon) and OC (Organic Carbon). The global emissions from ships at sea and in ports are distributed geographically, applying extended geographical data sets covering about 2 million global ship observations and global port data for 32 000 ships. In addition to inventories for the world fleet, inventories are produced separately for the three dominating ship types, using ship type specific emission modelling and traffic distributions. A global Chemical Transport Model (CTM) was used to calculate the environmental impacts of the emissions. We find that ship emissions is a dominant contributor over much of the world oceans to surface concentrations of NO2 and SO2. The contribution is also large over some coastal zones. For surface ozone the contribution is high over the oceans but clearly also of importance over Western North America (contribution 15–25%) and Western Europe (5–15%). The contribution to tropospheric column ozone is up to 5–6%. The overall impact of ship emissions on global methane lifetime is large due to the high NOx emissions. With regard to acidification we find that ships contribute 11% to nitrate wet deposition and 4.5% to sulphur wet deposition globally. In certain coastal regions the contributions may be in the range 15–50%. In general we find that ship emissions have a large impact on acidic deposition and surface ozone in Western North America, Scandinavia, Western Europe, western North Africa and Malaysia/Indonesia. For most of these regions container traffic, the largest emitter by ship type, has the largest impact. This is the case especially for the Pacific and the related container trade routes between Asia and North America. However, the contributions from bulk ships and tank vessels are also significant in the above mentioned impact regions. Though the total ship impact at low latitudes is lower, the tank vessels have a quite large contribution at low latitudes and near the Gulf of Mexico and Middle East. The bulk ships are characterized by large impact in Oceania compared to other ship types. In Scandinavia and north-Western Europe, one of the major ship impact regions, the three largest ship types have rather small relative contributions. The impact in this region is probably dominated by smaller ships operating closer to the coast. For emissions in ports impacts on NO2 and SO2 seem to be of significance. For most ports the contribution to the two components is in the range 0.5–5%, for a few ports it exceeds 10%. The approach presented provides an improvement in characterizing fleet operational patterns, and thereby ship emissions and impacts. Furthermore, the study shows where emission reductions can be applied to most effectively minimize the impacts by different ship types.

Baeomyia n.g. (Diptera: Tachinidae): descriptions and notes about phylogenetic and zoogeographic relationships

1984 ◽  
Vol 62 (7) ◽  
pp. 1387-1396
Author(s):  
James E. O'Hara
Keyword(s):  
British Columbia ◽  
North America ◽  
Distribution Pattern ◽  
Type Species ◽  
American Southwest ◽  
Western North America ◽  
Adult Males ◽  
Phylogenetic Data ◽  
Males And Females ◽  
The Relationship

Baeomyia n.g. is described for a group of small (2–3 mm long) tachinids belonging to the Siphona group of the Siphonini. All known specimens were collected in western North America, with two species recorded from southern British Columbia (Baeomyia xanthogaster n. sp. and Baeomyia juniperi n. sp.) and three species recorded from desert localities in the American Southwest (type-species Baeomyia hurdi (Reinhard), Baeomyia antennata n. sp. and Baeomyia sonorensis n. sp.). Keys to adult males and females are provided for separation of species. Systematics of the Siphonini and Siphona group are reviewed, including a discussion of the synapomorphies upon which each is defined. Baeomyia species are inferred to form a monophyletic taxon within the Siphona group on the basis of five synapomorphies, though the relationship between the genus and other Siphona group taxa is unresolved. The apparent disjunction of Baeomyia species into northern and southern ranges may be the result of relatively recent speciation events, because differences among species are slight. A detailed zoogeographic analysis of the distribution pattern must await further phylogenetic data.

scholarly journals XVII.—The Mean Pressure of the Atmosphere and the Prevailing Winds over the Globe, for the Months and for the Year. Part II

1869 ◽  
Vol 25 (2) ◽  
pp. 575-637 ◽  
Author(s):  
Alexander Buchan
Keyword(s):  
Approximate Solution ◽  
New Zealand ◽  
Atmospheric Pressure ◽  
Physical Problem ◽  
The West ◽  
Additional Information ◽  
The World ◽  
Mean Pressure ◽  
The Mean ◽  
Different Parts

Charts, showing by Isobaric Lines the mean pressure of the atmosphere over the globe during the months of the year, may be justly regarded as furnishing the key to all questions of meteorological inquiry; for without the information conveyed by such charts it is impossible to discuss satisfactorily those questions which relate to prevailing winds, the varying temperature, and the rainfall throughout the year in the different countries of the world. It is to meet this desideratum that the Charts of Mean Atmospheric Pressure of the globe which are given with this paper are offered as the first approximate solution of this great physical problem.Since Part I. was read in March 1868, valuable additional information has been obtained from Australia, New Zealand, Tasmania, Africa, South America, the west coast of North America, Iceland, Norway, and Sweden, and from several isolated stations in different parts of Europe and Asia. The period for the British Islands and a large portion of Europe has been extended so as to include the eleven years from 1857 to 1867.

scholarly journals EDITORIAL

Antiquity ◽  
2015 ◽  
Vol 89 (343) ◽  
pp. 5-11
Author(s):  
Chris Scarre
Keyword(s):  
North America ◽  
Global Scale ◽  
Modern World ◽  
Archaeological Research ◽  
The World ◽  
The Relationship

The world is changing rapidly, and archaeology with it. Globalisation is rewiring the relationship that connects Europe and North America, with their long histories of archaeological research, to other regions, where archaeologists are throwing new light on prehistories and early histories that have hitherto been less intensively studied. The outcome is a shifting but more balanced picture of the human past at a global scale, and a better appreciation of the interactions that have shaped the modern world.

scholarly journals Holocene Moraines and Rock Glaciers in the Central Ben Ohau Range, South Canterbury, New Zealand

1967 ◽  
Vol 6 (47) ◽  
pp. 737-748 ◽  
Author(s):  
V. R. McGregor
Keyword(s):  
New Zealand ◽  
North America ◽  
Southern Alps ◽  
Western North America ◽  
Rock Glaciers ◽  
Climatic Optimum ◽  
New Formation

Young moraines and rock glaciers in the central part of the Ben Ohau Range, about 42 km. south of the highest peaks of the Southern Alps, are briefly described. A new formation, the Ben Ohau Formation, consisting of the Ferintosh, Jacks Stream and Dun Fiunary Members, is proposed for moraines and rock glaciers believed to have been built since the climatic optimum by three minor glacial advances. Moraines, and outwash and fan gravels, deposited during a more extensive pre-climatic optimum advance which was contemporaneous with the Cockburn Glacial Phase (Cochrane) in North America are assigned to the Birch Hill Formation. The sequence of glacial advances recorded in the Ben Ohau Range is compared with that found in western North America.

Object and intention under Article 101 TFEU: Lessons from Australia, New Zealand and analytical jurisprudence

2019 ◽  
Vol 48 (3) ◽  
pp. 114-141
Author(s):  
Kelvin Hiu Fai Kwok
Keyword(s):  
European Union ◽  
New Zealand ◽  
European Commission ◽  
Common Law ◽  
Competition Law ◽  
Legal Interpretation ◽  
The European Union ◽  
Analytical Basis ◽  
The World ◽  
The Relationship

What does it mean for an agreement to have an anticompetitive ‘object’ under Article 101(1) of the Treaty on the Functioning of the European Union? Can the European Commission support an ‘object’ case by reference to the agreement parties’ subjective intention, and if so, how? What exactly is the relationship between an agreement’s object and the parties’ subjective intention under competition law? This article is the first to bring insights from Australian and New Zealand cases, as well as analytical jurisprudence, to bear on these underexplored yet important questions affecting the European Union and common law jurisdictions around the world. Using Ronald Dworkin’s theory of legal interpretation as the analytical basis, this article argues for a ‘mixed’ conception of the ‘object’ concept which enables an anticompetitive object to be proven either objectively or subjectively. Anticompetitive subjective intention accordingly provides an independent, alternative basis for competition law liability for agreements; the lack of such intention, meanwhile, does not help exculpate parties who are liable based on their objective purpose to restrict competition. This article also argues that voluntariness and evidentiary limits ought to be imposed on the use of anticompetitive subjective intention in the ‘object’ analysis of agreements.

Meloidogyne naasi. [Distribution map].

2013 ◽  
Author(s):  
Keyword(s):  
Triticum Aestivum ◽  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
White Clover ◽  
Trifolium Repens ◽  
Distribution Map ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Meloidogyne naasi Franklin. Nematoda: Tylenchida: Hoplolaimidae. Hosts: barley (Hordeum sp.), white clover (Trifolium repens), wheat (Triticum aestivum) and turfgrasses. Information is given on the geographical distribution in Europe (Belgium, France, Germany, Hungary, Ireland, Italy, Malta, Netherlands, Poland, Serbia, UK, England and Wales), Asia (Iran), Africa (Libya), North America (Canada, Quebec, USA, California, Illinois, Kansas, Kentucky, Maryland, Michigan, Oregon), South America (Argentina, Chile), Oceania (New Zealand).

Sign in / Sign up

Export Citation Format

Share Document