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Bench scale and mini-pilot plant tests were carried out at Port Hope, Ontario, to demonstrate the economic and technical viability of ion exchange to recover trace uranium from non-process laundry and truck wash waste water. A fixed-bed system with three ion exchange columns containing Purolite A300 resin type II was used to treat water containing 10-200 mg/l U. The breakthrough limit, set at 0.1 mg/l U, was obtained after a minimum of 1 200 equivalent bed volumes; saturation was obtained at 3 300 equivalent bed volumes. It was demonstrated that sulphuric acid is a satisfactory eluant and the resin can be regenerated., Bench scale and mini-pilot plant tests were carried out at Port Hope, Ontario, to demonstrate the economic and technical viability of ion exchange to recover trace uranium from non-process laundry and truck wash waste water. A fixed-bed system with three ion exchange columns containing Purolite A300 resin type II was used to treat water containing 10-200 mg/l U. The breakthrough limit, set at 0.1 mg/l U, was obtained after a minimum of 1 200 equivalent bed volumes; saturation was obtained at 3 300 equivalent bed volumes. It was demonstrated that sulphuric acid is a satisfactory eluant and the resin can be regenerated.

The precipitation of ammonium diuranate, an initial stage in the production of ceramic uranium dioxide at Cameco's Port Hope conversion facility, Ontario, generates around 2 000 000 l of ammonium nitrate solution, currently sold to fertiliser producers. An electrolytic membrane process was developed to recover ammonia, NH3 and nitric acid from the waste, as an alternative disposal strategy. The process was evaluated at bench and pilot scale and demonstrated to be technically viable. The tests are described, including the effect of current density on power consumption., The precipitation of ammonium diuranate, an initial stage in the production of ceramic uranium dioxide at Cameco's Port Hope conversion facility, Ontario, generates around 2 000 000 l of ammonium nitrate solution, currently sold to fertiliser producers. An electrolytic membrane process was developed to recover ammonia, NH3 and nitric acid from the waste, as an alternative disposal strategy. The process was evaluated at bench and pilot scale and demonstrated to be technically viable. The tests are described, including the effect of current density on power consumption.

As directed by William F. King, H. D. Dumont of the Merchants' Association of New York offers his services to President Roosevelt during the special session of Congress called to discuss the Cuban Treaty.

Four cases of extensive traumatic skin avulsion of the lower limb were treated. The fundamental principle of treatment is the resection of all avulsed skin, even if it appears viable shortly after the accident. Covering of the wound must be assured by thin or thick skin grafts, immediate or delayed, according to the case., SCOPUS: NotDefined.j, SCOPUS: NotDefined.j, info:eu-repo/semantics/published

Four cases of extensive traumatic skin avulsion of the lower limb were treated. The fundamental principle of treatment is the resection of all avulsed skin, even if it appears viable shortly after the accident. Covering of the wound must be assured by thin or thick skin grafts, immediate or delayed, according to the case., SCOPUS: NotDefined.j, SCOPUS: NotDefined.j, info:eu-repo/semantics/published

The Mining Code of 2002 and the ancillary Mining Regulation adopted in 2003 modified and reshaped the legal system applicable to mining rights, including mining disputes and their resolution. In particular, the Mining Code 2002 includes three methods of resolving disputes, administrative, judicial and arbitral recourse. Inconsistencies and inaccuracies in the legislation are discussed, including the definition of title holder, which should include the applicant or former title holder and the lessee where applicable, possible confusion between the judicial and arbitral recourse procedures, the lack of provision for the number of arbitrators, place of arbitration and the Tribunal of Great Instance, and inconsistencies between the provisions for domestic arbitration and the Code of Civil Procedure., The Mining Code of 2002 and the ancillary Mining Regulation adopted in 2003 modified and reshaped the legal system applicable to mining rights, including mining disputes and their resolution. In particular, the Mining Code 2002 includes three methods of resolving disputes, administrative, judicial and arbitral recourse. Inconsistencies and inaccuracies in the legislation are discussed, including the definition of title holder, which should include the applicant or former title holder and the lessee where applicable, possible confusion between the judicial and arbitral recourse procedures, the lack of provision for the number of arbitrators, place of arbitration and the Tribunal of Great Instance, and inconsistencies between the provisions for domestic arbitration and the Code of Civil Procedure.

Copyright © 2015 Magnolia Press. Approximately 199 cladoceran species, 5 marine and 194 freshwater and continental saltwater species, live in China. Of these, 89 species are discussed in this paper. They belong to the 4 cladoceran orders, 10 families and 23 genera. There are 2 species in Leptodoridae; 6 species in 4 genera and 3 families in order Onychopoda; 18 species in 7 genera and 2 families in order Ctenopoda; and 63 species in 11 genera and 4 families in non-Radopoda Anomopoda. Five species might be endemic of China and three of Asia. Many records are suspect at the species level, and numerous taxonomic problems remain to be settled.

National audience

© 2016, Journal of Limnology. All rights reserved.Studies on Daphnia distribution in Indian subcontinent have been few and regionally restricted despite Daphnia being by far the most studied cladoceran. We here present a first biogeographical assessment of the genus on the Indian subcontinent (Afghanistan, Pakistan, India, Nepal, Bhutan, Bangladesh and Sri Lanka). We collected all pertinent literature and considered nineteen bioclimatic variables along with latitude, longitude, and altitude for statistical analysis of factors governing distribution in space. Significant variables (determined by Kruskal Wallis test) were tested by nonparametric multivariate analysis of variance (PERMANOVA) to clarify whether Daphnia species had specific environmental requirements. Canonical correspondence analysis was used to understand how environmental variables affected distribution. Eight Daphnia (Ctenodaphnia) and 4 Daphnia s.str. occurred at 100 different localities. The variables temperature, altitude and latitude differed among species and so did their bio-climatic requirements. Daphnia distribution responded positively to altitude and negatively to a decrease in latitude and temperature. We confirm the existence of three complexes of Daphnia in the Indian subcontinent: i) widely distributed species and species complexes; ii) high altitude endemics; and iii) low latitude D. (Ctenodaphnia) species.

Copyright © 2015 Magnolia Press. Approximately 199 cladoceran species, 5 marine and 194 freshwater and continental saltwater species, live in China. Of these, 89 species are discussed in this paper. They belong to the 4 cladoceran orders, 10 families and 23 genera. There are 2 species in Leptodoridae; 6 species in 4 genera and 3 families in order Onychopoda; 18 species in 7 genera and 2 families in order Ctenopoda; and 63 species in 11 genera and 4 families in non-Radopoda Anomopoda. Five species might be endemic of China and three of Asia. Many records are suspect at the species level, and numerous taxonomic problems remain to be settled.

© 2015 Magnolia Press. About 114 "species" of Macrothrichidae, Eurycercidae, and Chydoridae (Cladocera, Anomopoda), belonging to 39 gen-era, have been reported from China, with 14 species in 6 genera in Macrothrichidae, 2 species in one genus in Eurycerci-dae, and 98 species in 31 genera in Chydoridae. In total, 203 species in 62 genera, 13 families and 4 orders have so far been reported from the country. Of these, 187 are tentatively considered as valid, while 16 are incertae sedis. In reality, many records hide taxonomic problems that remain to be settled. Up to 10 percent of this fauna might be endemic at the species level, but we expect this number to increase pending new, comprehensive studies. No endemic genera fall to be recorded. Most of the several hundreds of taxonomic or biogeeographic papers from which this information was extracted suffer from poor or outdated taxonomy, such that up to half of all species are up for re-evaluation. Detailed morphological examination, but also provoked male production, especially in chydorids, are ways to improve identifications and should be stimulated. On the other hand, the inventory is certainly still incomplete with several tropical-subtropical taxa still to be expected in China. The extreme south and islands are among promising sites that remain to be explored, as well as extreme habitats all over the country. Molecular studies in China started around the beginning or the present decade, and should be multiplied.

© 2016, Journal of Limnology. All rights reserved.Studies on Daphnia distribution in Indian subcontinent have been few and regionally restricted despite Daphnia being by far the most studied cladoceran. We here present a first biogeographical assessment of the genus on the Indian subcontinent (Afghanistan, Pakistan, India, Nepal, Bhutan, Bangladesh and Sri Lanka). We collected all pertinent literature and considered nineteen bioclimatic variables along with latitude, longitude, and altitude for statistical analysis of factors governing distribution in space. Significant variables (determined by Kruskal Wallis test) were tested by nonparametric multivariate analysis of variance (PERMANOVA) to clarify whether Daphnia species had specific environmental requirements. Canonical correspondence analysis was used to understand how environmental variables affected distribution. Eight Daphnia (Ctenodaphnia) and 4 Daphnia s.str. occurred at 100 different localities. The variables temperature, altitude and latitude differed among species and so did their bio-climatic requirements. Daphnia distribution responded positively to altitude and negatively to a decrease in latitude and temperature. We confirm the existence of three complexes of Daphnia in the Indian subcontinent: i) widely distributed species and species complexes; ii) high altitude endemics; and iii) low latitude D. (Ctenodaphnia) species.

© 2015 Magnolia Press. About 114 "species" of Macrothrichidae, Eurycercidae, and Chydoridae (Cladocera, Anomopoda), belonging to 39 gen-era, have been reported from China, with 14 species in 6 genera in Macrothrichidae, 2 species in one genus in Eurycerci-dae, and 98 species in 31 genera in Chydoridae. In total, 203 species in 62 genera, 13 families and 4 orders have so far been reported from the country. Of these, 187 are tentatively considered as valid, while 16 are incertae sedis. In reality, many records hide taxonomic problems that remain to be settled. Up to 10 percent of this fauna might be endemic at the species level, but we expect this number to increase pending new, comprehensive studies. No endemic genera fall to be recorded. Most of the several hundreds of taxonomic or biogeeographic papers from which this information was extracted suffer from poor or outdated taxonomy, such that up to half of all species are up for re-evaluation. Detailed morphological examination, but also provoked male production, especially in chydorids, are ways to improve identifications and should be stimulated. On the other hand, the inventory is certainly still incomplete with several tropical-subtropical taxa still to be expected in China. The extreme south and islands are among promising sites that remain to be explored, as well as extreme habitats all over the country. Molecular studies in China started around the beginning or the present decade, and should be multiplied.

Copyright © 2015 Magnolia Press. Approximately 199 cladoceran species, 5 marine and 194 freshwater and continental saltwater species, live in China. Of these, 89 species are discussed in this paper. They belong to the 4 cladoceran orders, 10 families and 23 genera. There are 2 species in Leptodoridae; 6 species in 4 genera and 3 families in order Onychopoda; 18 species in 7 genera and 2 families in order Ctenopoda; and 63 species in 11 genera and 4 families in non-Radopoda Anomopoda. Five species might be endemic of China and three of Asia. Many records are suspect at the species level, and numerous taxonomic problems remain to be settled.

The ‘unseen’ microbial diversity of a small solution lake in central Spain is investigated using electron microscopy. The water has an elevated concentration of dissolved sulphate that supports significant abundance of sulphate reducing bacteria. Water samples were collected from the 13m stratum, fixed in situ and prepared for posterior electron microscopy examination. The results show high diversity of prokaryotes and microbial associations, particularly predatory bacteria, thriving in the anoxic layers of the water body. This high abundance and biodiversity, including multi-infestation of individual cells, increase the number of lateral links in the otherwise impoverished anaerobic food chain. The wider potential applications of predatory bacteria are discussed.

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