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1692. An American monograph on the protectorate
- Creator:
- Raška, Francis D.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Language:
- English
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1693. An annotated list of parasites (Isopoda, Copepoda, Monogenea, Digenea, Cestoda and Nematoda) collected in groupers (Serranidae, Epinephelinae) in New Caledonia emphasizes parasite biodiversity in coral reef fish
- Creator:
- Justine, Jean-Lou, Beveridge, Ian, Boxshall, Geoffrey A., Bray, Rod A., Moravec, František, Trilles, Jean-Paul, and Whittington, Ian D.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Isopoda, Copepoda, Monogenea, Digenea, Cestoda, Nematoda, Serranidae, Epinephelinae, parasite biodiversity, coral reef, and New Caledonia
- Language:
- English
- Description:
- Over a 7-year period, parasites have been collected from 28 species of groupers (Serranidae, Epinephelinae) in the waters off New Caledonia. Host-parasite and parasite-host lists are provided, with a total of 337 host-parasite combinations, including 146 parasite identifications at the species level. Results are included for isopods (5 species), copepods (19), monogeneans (56), digeneans (28), cestodes (12), and nematodes (12). When results are restricted to those 14 fish species for which more than five specimens were examined and to parasites identified at the species level, 109 host-parasite combinations were recorded, with 63 different species, of which monogeneans account for half (32 species), and an average of 4.5 parasite species per fish species. Digenean records were compared for 16 fish species shared with the study of Cribb et al. (2002); based on a total of 90 parasite records identified at the species level, New Caledonia has 17 new records and only seven species were already known from other locations. We hypothesize that the present results represent only a small part of the actual biodiversity, and we predict a biodiversity of 10 different parasite species and 30 host-parasite combinations per serranid. A comparison with a study on Heron Island (Queensland, Australia) by Lester and Sewell (1989) was attempted: of the four species of fish in common and in a total of 91 host-parasite combinations, only six parasites identified at the species level were shared. This suggests strongly that insufficient sampling impairs proper biogeographical or ecological comparisons. Probably only 3% of the parasite species of coral reef fish are already known in New Caledonia.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1694. An antagonist of GABA-B receptors potentiates activity of cortical epileptic foci
- Creator:
- Pavel Mareš, Klára Bernášková, and Hana Kubová
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, fyziologie člověka, human physiology, cerebral cortex, bicuculline, CGP35348, epileptic focus, rat, 14, and 612
- Language:
- English
- Description:
- Cortical epileptic foci elicited by local application of bicuculline methiodide represent a model of interictal epileptic activity with a transition into ictal phases. We studied a role of GABA-B receptors in this model using GABA-B receptor antagonist CGP35348 in adult rats with implanted cortical electrodes and cannula. CGP35348 (100 or 200 mg/kg i.p.) did not affect interictal discharges but it augmented ictal activity. Latency to the first ictal episode was decreased by the lower dose of CGP35348, duration of episodes was increased by the higher dose. GABA-B receptor antagonist did not influence purely cortical epileptic phenomenon but it is proconvulsant in ictal activity generated with participation of subcortical structures., P. Mareš, K Bernášková, H. Kubová., and Obsahuje seznam literatury
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1695. An application of dimensional model theory in the determination of the deformation of a structure
- Creator:
- Száva, Ioan, Szirtes, Thomas, and Dani, Péter
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- dimensional analysis, model law, prototype, model, displacement, and reticular structure
- Language:
- English
- Description:
- This paper presents an adroit utilization of dimensional analysis-based model theory by which the deformation of a structure - however complex - can be elegantly and easily obtained. The structure is loaded by a concentrated lateral load of arbitrary location and magnitude. The relevant technique is outlined in some details; therefore the reader is advised to follow the presented routine closely. By doing so, he will be impressed by the prowees and economy of the described process. In the Preamble, the more important relevant theorems and relations - without proofs - are given in greatly condensed forms. This summary will help the reader to understand the subsequent application presented. Full treatment of the theories and practice of applied dimensional model theory can be found in [1], which the interested and motivated reader is advised to consult. and Obsahuje seznam literatury
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1696. An arduous road of the exile toward the fall of the Iron Curtain
- Creator:
- Nekola, Martin
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Language:
- English
- Description:
- Autor recenze: Martin Nekola
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1697. An assessment of endangered species habitat at large scale: chiru distribution across the Tibetan region of Chang Tang
- Creator:
- Feng, Feifei, Yang, Zhisong, Owens, Jacob Robert, Hou, Rong, Zhang, Zhihe, and Qi, Dunwu
- Type:
- article, model:article, and TEXT
- Subject:
- Pantholops hodgsonii, habitat assessment, species distribution, and habitat suitability
- Language:
- English
- Description:
- Habitat degradation is a major threat to the survival of chiru (Pantholops hodgsonii). Detailed knowledge for habitat conservation in this steppe-dwelling ungulate is needed if effective conservation and management strategies are to be developed. The distribution of potential habitat and the relative value of habitat to chiru on a regional scale remains unknown, hindering landscape conservation planning. Our aim was to identify and rank chiru habitat across the Chang Tang region of the Tibetan Plateau. We assessed overall habitat suitability using geographical data, field surveys, and information contained within previous studies. We identified 10194 km2 of optimal habitat (1.71 % of the region), 256816 km2 of suitable habitat (43.17 % of the region), and 213799 km2 of marginal habitat (35.94 % of the region). Our habitat model shows that suitable habitat is located primarily in the central (Nyingma county and Shuanghu county) and western (Geze county) regions of the study area. When we looked specifically at a chiru reserve (Chang Tang Nature Reserve) located within the study area, we found that over half of the reserve could be classified as suitable habitat. This highlights the regional importance of this reserve to chiru conservation. Our findings further indicate that the protection of suitable habitat and improvement of habitat linkages will be important features of any regional chiru conservation plan.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1698. An assessment of regulation, education practices and socio-economic perceptions of non-native aquatic species in the Balkans
- Creator:
- Piria, Marina, Kalamujić Stroil, Belma, Giannetto, Daniela, Tarkan, Ali Serhan, Gavrilović, Ana, Špelić, Ivan, Radočaj, Tena, Killi, Nurçin, Filiz, Halit, Uçma Uysal, Tuğba, Aldemir, Ceray, Kamberi, Elvis, Hala, Edmond, Bakiu, Rigers, Kolitari, Jerina, Buda, Enkelejda, Durmishaj Bakiu, Silvia, Sadiku, Edlira, Bakrač, Azra, Mujić, Emir, Avdić, Subha, Doumpas, Nikos, Giovos, Ioannis, Dinoshi, Irsida, Ušanović, Lejla, Kalajdžić, Abdurahim, Pešić, Ana, Ćetković, Ilija, Marković, Olivera, Milošević, Dragana, Mrdak, Danilo, Sará, Gianluca, Bosch Belmar, Mar, Marchessaux, Guillaume, Trajanovski, Sasho, and Zdraveski, Konstantin
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- invasive aquatic species, legislation, public awareness, western Balkans, and EU
- Language:
- English
- Description:
- Alongside climate change, the introduction of non-native species (NNS) is widely recognized as one of the main threats to aquatic biodiversity and human wellbeing. Non-native species and biodiversity are generally low priority issues on the political agendas of many countries, particularly in European countries outside the European Union (EU). The objectives and tasks of this study were to address the policy regulation, education level, education practices, and socioeconomic perceptions of NNS in the Balkans. A questionnairebased survey was conducted in Albania, Bosnia and Herzegovina, Montenegro, North Macedonia and Turkey (Balkan EU candidate and potential candidate members), in Croatia and Greece (Balkan EU Member States) and Italy (non-Balkan EU Member State). The EU Alien Regulation (1143/2014) concerning NNS is implemented in EU Member States and Montenegro, whereas Albania, Bosnia and Herzegovina and Turkey have not reported specific policy regulations for NNS. Permanent monitoring programmes specifically designed for NNS have not yet been established in the EU Member States. Most countries tackle the issue of NNS through educational activities as part of specific projects. Education level is indicative of the implementation of NNS policy regulation, and efforts are needed for the proper development of relative study programmes. Public awareness and educational preparedness concerning NNS in the Balkans were identified as poor. Strong programmes for management and education should be developed to increase public awareness to prevent further biodiversity losses in the Balkan region.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1699. An automated microinfiltrometer to measure small-scale soil water infiltration properties
- Creator:
- Gordon, Dennis C. and Hallett, Paul D.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- tension infiltrometer, water sorptivity, automated measurements, and small-scale infiltration measurements
- Language:
- Slovak
- Description:
- We developed an automated miniature constant-head tension infiltrometer that measures very small infiltration rates at millimetre resolution with minimal demands on the operator. The infiltrometer is made of 2.9 mm internal radius glass tube, with an integrated bubbling tower to maintain constant negative head and a porous mesh tip to avoid air-entry. In the bubbling tower, bubble formation and release changes the electrical resistance between two electrodes at the air-inlet. Tests were conducted on repacked sieved sands, sandy loam soil and clay loam soil, packed to a soil bulk density ρd of 1200 kg m-3 or 1400 kg m-3 and tested either air-dried or at a water potential ψ of -50 kPa. The change in water volume in the infiltrometer had a linear relationship with the number of bubbles, allowing bubble rate to be converted to infiltration rate. Sorptivity measured with the infiltrometer was similar between replicates and showed expected differences from soil texture and ρd, varying from 0.15 ± 0.01 (s.e.) mm s-1/2 for 1400 kg m-3 clay loam at ψ = -50 kPa to 0.65 ± 0.06 mm s-1/2 for 1200 kg m-3 air dry sandy loam soil. An array of infiltrometers is currently being developed so many measurements can be taken simultaneously.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1700. An Čung-gun a Itó Hirobumi
- Creator:
- Kloslová, Zdenka
- Format:
- Type:
- model:internalpart and TEXT
- Language:
- Czech
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public