Two of the four crayfish species brought to Zambia for aquaculture since 1979 are now naturalised. Procamburus clarkii occurs in the Maramba River at Livingstone, close to a former fish farm, whereas ...Cherax quadricarinatus, deliberately introduced to a number of sites in the Zambezi and Kafue River catchments since 2001, is now widespread and highly invasive. High rates of dispersal, up to 111 km y−1 downstream, might be the result of passive transport on floating vegetation. Significantly more synodontid Synodontis sp. catfish were caught in Fladen traps in the Kafue River in crayfish-free areas compared with crayfish-infested areas, but the possibility that synodontids became trap averse in the presence of crayfish was not ruled out. No difference was found in the numbers of Single-spined River Crab Potamonautes unispinus caught in crayfish-free and infested areas. Alien temnocephalans, commonly found on crayfish, are now also present on crabs P. unispinus on the Kafue Flats. The artisanal gill net fishery has been harmed by the introduction of C. quadricarinatus and no significant commercial fishery has developed. However, without more information on the adverse impacts, and stronger fisheries regulation, there is a high risk C. quadricarinatus and P. clarkii will be introduced to uninfested catchments with irreversible consequences for artisanal fishermen and the environment.
The freshwater wetlands on the Eastern Shores of Lake St Lucia provide an important habitat for freshwater fishes, including a number of IUCN Red Listed species. The ecology of these wetlands is ...influenced greatly by water flowing from the large sand aquifers along the lake's eastern
shoreline. Of the various aquatic habitats occurring on the Eastern Shores, freshwater seeps along the shoreline of the saline Lake St Lucia are important for maintaining populations of certain freshwater fishes. The persistence of fresh water in these seeps, even during drought conditions,
makes them important refugia for fish and other freshwater organisms. Several potentially new distribution records for St Lucia are reported.
To investigate the delivery of health services to different ethnic groups in the war and postwar periods in the area of Livno, Bosnia and Herzegovina.
The total population, percentages by ...nationality, and numbers of persons medically or surgically treated at the War and General Hospital of Livno between January 1991 and October 2000 were retrospectively analyzed. Demographic data from church, military, and local government archives of the Livno region were used.
In the prewar period (1991-1995), there had been living approximately 40,000 inhabitants (Croats, 75%; Moslems, 17%; Serbs, 8%) and 685,361 patients were treated (Croats, 46%; Moslems, 33%; Serbs, 21%). In the war period, 1590 patients were treated surgically (Croats, 78.5%; Moslems, 16.8%; Serbs, 4.7%). In the postwar period (1996-2000), surgery was performed for 3217 patients (Croats, 76.8%; Moslems, 19.3%; Serbs, 3.9%).
The constant numbers of patients of different nationalities treated during and after the war reveal that the medical staff worked in an ethical and highly professional manner.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, ODKLJ, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK, VSZLJ
U radu se donose rezultati pokusnog iskopavanja na gradini Bregana-Kosovac koje je proveo Odsjek za arheologiju Filozofskog fakulteta Sveučilišta u Zagrebu 1996. godine. Preliminarno se datiraju ...nalazi i ponovo se vrednuju ranije donešeni zaključci u starijoj literaturi.
Competition in the telecommunications market is growing rapidly. Therefore, network operators and service providers have to reform their marketing and service delivery strategies in order to be ...competitive in the broadband service market. A convergence strategy for fixed and mobile services via a standards-based IN platform may provide a step in the right direction. This article deals with evolutionary steps for convergence services and their benefits to network operators and customers. It presents possible migration paths from the existing GSM to UMTS. The article also provides a comparative analysis of the wireless technologies involved in this evolution.
Rad donosi rezultate tipološke i statističke obrade keramičkih nalaza iz kasnobrončanodobnog naselja Kalnik-Igrišče. Uz pomoć računala stvoren je sistem dokumentacije, analize i tipološke ...klasifikacije keramike. Definirani tipovi uspoređuju se sa srodnim nalazima u srednjoj Evropi, posebno s nalazima iz Transdanubije, Donje Austrije i Gradišća, jugozapadne Slovačke i Moravske.
U radu je obrađena grupa nalaza koja ukazuje na postojanje metalurške djelatnosti na lokalitetu Kalnik-Igrišće. U istraženome dijelu kasnobrončanodobnog naselja iz vremena grupe Zagreb (12. i 11. st. ...pr. Kr.) pronađeno je nekoliko ulomaka kamenih kalupa za lijevanje metala, troska i kanelirani kamen. Svi nalazi koncentrirani su oko 7 ognjišta.
U proljeće 1997. godine Odsjek za arheologiju Filozofskog fakulteta Sveučilišta u Zagrebu proveo je u suradnji sa Zavičajnim muzejom Nova Gradiška projekt sustavnog terenskog pregleda područja grada ...Nova Gradiška. Projekt je obuhvaćao teritorij katastarskih općina Nova Gradiška, rešetari, Cernik, Baćin Dol i Šumetlica, a istraživanja su registrirala 24 nalazišta iz prapovijesnog i srednjovjekovnog perioda.
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