Evidence for the buffer zone in a plasma accelerator

1991 ◽  
Vol 70 (7) ◽  
pp. 3467-3471 ◽  
Author(s):  
Keith A. Thomas ◽  
Eugène J. Clothiaux
Keyword(s):  
Buffer Zone ◽  
Plasma Accelerator

GAMBARAN INDEKS LARVA AEDES AEGYPTI DI BUFFER WILAYAH KERJA BANDARA SEPINGGAN BALIKPAPAN

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Abdurrakhman abdurrakhman Abdurrakhman
Keyword(s):  
Aedes Aegypti ◽  
Buffer Zone ◽  
Chi Square ◽  
Cross Sectional ◽  
Breeding Sites ◽  
Dengue Disease ◽  
Vector Borne Diseases ◽  
Transportation Equipment ◽  
Chi Square Test ◽  
Larvae Density

ABSTRACT : The House index and Container Index in the buffer area of ​​the working area of ​​Balikpapan Sepinggan Airport is still above 1%, so the potential for the spread of dengue disease. Mobilization of people, goods and transportation equipment will increasingly affect the transmission of disease in ports and airports, especially for vector-borne diseases. This study aims to analyze the risk factors associated with larvae density of Aedes aegypti and describe the larvae index in the buffer zone of the Sepinggan Balikpapan Airport This study was a descriptive study with a cross sectional design. The sample in this study was 121 houses with a proportionate stratified random sampling, the research location was in the buffer zone of Sepinggan Balikpapan Airport in November 2018. The variables studied were houses with positive larvae containers, breeding sites and PSN behavior and larvasidation. The data was analyzed using the chi square test. There was a relationship between houses with larvae positive Aedes aegypti, behavior of Mosquito Nest Eradication (PSN) and larvasidation with larvae density of Aedes aegypti but not for breeding sites (p = 0.00 and 95% CI = 0.64), and   (p = 0.00 and 95% CI = 0.34). The description of several Aedes aegypti larvae index, namely House Index (HI) = 57.02%, Container Index (CI) = 24.36%, Bruteau Index (BI) = 148.76, and Flick Free Numbers (ABJ) = 42.98 %. Houses with larvae of Aedes aegypti larvae and PSN and larvasidation behavior were associated with larvae density of Aedes aegypti. The index of HI, CI and BI larvae is of high value so there is a risk of DBD transmission

Modeling cetacean habitat use in an urban coastal area in southeastern Brazil

2020 ◽  
Vol 642 ◽  
pp. 227-240
Author(s):  
L Lodi ◽  
R Tardin ◽  
G Maricato
Keyword(s):  
Habitat Use ◽  
Protected Areas ◽  
Linear Models ◽  
Anthropogenic Activities ◽  
Buffer Zone ◽  
Humpback Whales ◽  
Southeastern Brazil ◽  
Major Influence ◽  
Cetacean Species ◽  
Few Data

Most studies of cetacean habitat use do not consider the influence of anthropogenic activities. We investigated the influence of environmental and anthropogenic variables on habitat use by humpback Megaptera novaeangliae and Bryde’s whales Balaenoptera brydei off the coast of the Brazilian city of Rio de Janeiro. Although there are 2 marine protected areas (MPAs) in this area, few data are available on cetacean habitat use or on the overlap of different cetacean species within these MPAs. Our aim was to evaluate the effectiveness of the MPAs and propose a buffer zone to better protect the biodiversity of the study area. We conducted systematic surveys and developed spatial eigenvector generalized linear models to characterize habitat use by the species in the study area. Habitat use by humpback whales was influenced only by depth, whereas for Bryde’s whales there was the additional influence of anthropogenic variables. For Bryde’s whales, which use the area for feeding, sea surface temperature and the distance to anchorages had a major influence on habitat use. We also showed that neither of the MPAs in the study area adequately protects the hotspots of either whale species. Most of the humpback whale grid cells with high sighting predictions were located within 2 km of the MPAs, while areas of high sighting prediction of Bryde’s whales were located up to 5 km from the MPAs, closer to beaches. Our findings provide important insights for the delimitation of protected areas and zoning of the MPAs.

Fishing Cat Prionailurus viverrinus Bennett, 1833 (Carnivora: Felidae) distribution and habitat characteristics in Chitwan National Park, Nepal

2018 ◽  
Vol 10 (11) ◽  
pp. 12451-12458 ◽  
Author(s):  
Rama Mishra ◽  
Khadga Basnet ◽  
Rajan Amin ◽  
Babu Ram Lamichhane
Keyword(s):  
National Park ◽  
Buffer Zone ◽  
Camera Trap ◽  
Habitat Characteristics ◽  
Oxbow Lakes ◽  
River Floodplains ◽  
Independent Events ◽  
Awareness Programs ◽  
Chitwan National Park ◽  
Threaten Species

The Fishing Cat is a highly specialized and threatened felid, and its status is poorly known in the Terai region of Nepal.  Systematic camera-trap surveys, comprising 868 camera-trap days in four survey blocks of 40km2 in Rapti, Reu and Narayani river floodplains of Chitwan National Park, were used to determine the distribution and habitat characteristics of this species.  A total of 19 photographs of five individual cats were recorded at three locations in six independent events.  Eleven camera-trap records obtained during surveys in 2010, 2012 and 2013 were used to map the species distribution inside Chitwan National Park and its buffer zone.  Habitat characteristics were described at six locations where cats were photographed.  The majority of records were obtained in tall grassland surrounding oxbow lakes and riverbanks.  Wetland shrinkage, prey (fish) depletion in natural wetlands and persecution threaten species persistence.  Wetland restoration, reducing human pressure and increasing fish densities in the wetlands, provision of compensation for loss from Fishing Cats and awareness programs should be conducted to ensure their survival.  We also recommend studying genetic diversity of sub-populations, as well as habitat use by radio-tagging. 

Conclusion to Part I

2017 ◽  
Author(s):  
Tom Scott
Keyword(s):  
Buffer Zone ◽  
The West ◽  
Charles V ◽  
Theological Perspective ◽  
Swiss Confederation

The situation of Konstanz was only settled when Emperor Charles V reduced it to an Austrian territorial town in 1548. And while the Swiss common lordships survived, Huldrych Zwingli contemplated their abolition in favour of two Protestant power blocs under Zürich in the east and Bern in the west. Zwingli did understand the Rhine as a frontier, but from a theological perspective: the achievement of the valiant God-fearing Swiss from small beginnings. Modern historians remain sceptical of the notion of the Rhine as frontier; what the preceding century had created (despite the propaganda war of mutual name-calling) was a buffer zone within which conflicts could be defused locally. Feudal bonds and knightly associations in the Thurgau survived amidst the supposedly ‘republican’ Swiss Confederation. And the Fricktal survived as a sizeable Habsburg territory south of the Rhine until 1806.

The Swiss and their Neighbours, 1460-1560

2017 ◽  
Author(s):  
Tom Scott
Keyword(s):  
Fifteenth Century ◽  
Turning Point ◽  
Buffer Zone ◽  
The Political ◽  
Territorial Expansion ◽  
The Reformation ◽  
Political Principle ◽  
Mutual Obligation ◽  
The Common ◽  
Common Identity

Renewed interest in Swiss history has sought to overcome the old stereotypes of peasant liberty and republican exceptionalism. The heroic age of the Confederation in the fifteenth century is now seen as a turning point as the Swiss polity achieved a measure of institutional consolidation and stability, and began to mark out clear frontiers. This book questions both assumptions. It argues that the administration of the common lordships by the cantons collectively gave rise to as much discord as cooperation, and remained a pragmatic device not a political principle. It argues that the Swiss War of 1499 was an avoidable catastrophe, from which developed a modus vivendi between the Swiss and the Empire as the Rhine became a buffer zone, not a boundary. It then investigates the background to Bern’s conquest of the Vaud in 1536, under the guise of relieving Geneva from beleaguerment, to suggest that Bern’s actions were driven not by predeterminate territorial expansion but by the need to halt French designs upon Geneva and Savoy. The geopolitical balance of the Confederation was fundamentally altered by Bern’s acquisition of the Vaud and adjacent lands. Nevertheless, the political fabric of the Confederation, which had been tested to the brink during the Reformation, proved itself flexible enough to absorb such a major reorientation, not least because what held the Confederation together was not so much institutions as a sense of common identity and mutual obligation forged during the Burgundian Wars of the 1470s.

The existence during gestation of an immunological buffer zone at the interface between maternal and foetal tissues

1975 ◽  
Vol 271 (912) ◽  
pp. 343-361 ◽  
Keyword(s):  
Buffer Zone ◽  
Placental Lactogen ◽  
Apical Plasma Membrane ◽  
Hormonal Changes ◽  
Endocrine Activity ◽  
Maternal Tissue ◽  
Local Survival ◽  
Receptor Sites ◽  
Probable Interaction ◽  
Immunological Attack

In mammalian pregnancy the trophoblast normally constitutes an uninterrupted boundary of foetal tissue in immediate contact with maternal tissue, including blood in some species, and is the decisive immunological barrier to rejection of the foetus as an allograft. The ability of the trophoblast to function as a barrier evidently results from its capacity to resist immunological attack by either alloantibody or alloimmune cells and to prevent immunocompetent cells from reaching and damaging the foetus but, as yet, there is no general agreement regarding the means by which it exercises these functions. In view of the dramatic hormonal changes that occur during pregnancy and the undisputed involvement of trophoblast in these endocrine events, the possibility exists of an interaction between the hormones of pregnancy and the immunological phenomena. The present account furnishes evidence that endocrine activity at the maternal surface of the trophoblast, the presumptive site of the immunological frontier between foetus and mother, may be a factor in its local survival at implantation. The placental hormones so far known that are capable of blocking the antigen receptor sites of the mother’s lymphocytes and thus preventing the latter from reacting with the foetal antigens are the glycoprotein, human chorionic gonadotrophin (HCG) and the polypeptide hormone, human chorionic somatomammotrophin (HCS) or human placental lactogen (HPL), both of which are specific to the human placenta. The origin of these hormones, their spatial distribution and their probable interaction with placental steroid hormones are discussed. It is argued that the place of highest concentration of these hormones is on the surface of the syncytial microvilli and the adjacent caviolae of the apical plasma membrane, as well as on the surfaces of the persisting cytotrophoblastic cells of the basal plate (cytotrophoblastic shell), the cell islands and the septa - precisely where the immunological challenge of the foetal allograft to the maternal host occurs. An explanation is offered for the continuing production of the voluminous quantities of these hormones during human pregnancy.

scholarly journals Linking Conservation, Community Knowledge, and Adaptation to Extreme Climatic Events: A Case Study in Gorongosa National Park, Mozambique

2021 ◽  
Vol 13 (11) ◽  
pp. 6478
Author(s):  
Amemarlita Matos ◽  
Laura Barraza ◽  
Isabel Ruiz-Mallén
Keyword(s):  
National Park ◽  
Animal Species ◽  
Human Life ◽  
Management Strategies ◽  
Forest Products ◽  
Buffer Zone ◽  
Structured Interviews ◽  
Extreme Climatic Events ◽  
Water Provision

This study is based on ethnographic research that analyzes how traditional knowledge and local beliefs on biodiversity conservation relates to the local ability to adapt and be resilient to climatic changes in two communities around Gorongosa National Park, Mozambique: Nhanfisse in the buffer zone and Muanandimae in the core area. A total of 78 semi-structured interviews with heads of households were conducted. We found that both communities carried out practices and held beliefs associated with conservation, such as protecting trees and animal species considered sacred or perceived as beneficial for human life in terms of water provision and agricultural production. In addition to traditional ceremonies that respond to extreme climatic events such as drought and flood, other adaptation strategies used by the communities include moving to neighboring areas in search of better living conditions and using forest products in times of scarcity. We discuss that the management of the park should be agreed on, in a shared way, between local communities and conservation agents to ensure that these areas continue to perform the ecological, subsistence, and spiritual functions required. Our research results contribute to a better understanding of local adaptation dynamics towards extreme climatic events and improvement of management strategies.

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