Wyniki wyszukiwania

1

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Pressurized methods for grading the vulnerability of pods splitting

100%

Szwed G., Tys J., Strobel W.

International Agrophysics

|

1999

|

tom 13

|

nr 3

2

Vulnerability of sun and shade canopy leaves under natural environmental stresses

86%

Repkova J., Brestic M.

Acta Physiologiae Plantarum

|

2007

|

tom 29

|

nr 1 Suppl.

3

Flood risk and vulnerability in the changing climate

86%

Kundzewicz Z. W.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

|

2008

|

tom 39

Floods are a natural phenomenon, striking the humankind since the dawn of history. Yet, recent fl ood damages are dramatically higher than before, so that it is necessary to seek interpretation of this fact. River fl ooding is a complex phenomenon which can be affected by changes coupled to physical, terrestrial, climate and socio-economic systems. The climate track in the observed changes is likely, even if human encroaching into the harm’s way and increase in the damage potential in fl oodplains can be the dominating factors in many river basins. Increase in heavy precipitation has been observed, with consequences to increasing risk of rain-induced fl ooding. Projections for the future, based on regional climate models, indicate increase of fl ood risk and vulnerability in many areas. Impacts on urban fl ooding, in a multi-factor context are examined. The present contribution is following the global IPCC perspective, in the context of the IPCC Fourth Assessment Report and the IPCC Technical Paper on Water, where ZWK was a Coordinating Lead Author.

4

Vulnerability of national parks to natural hazards in the Serbian Danube region

86%

Dragicevic S., Meszaros M., Djurdjic S., Pavic D., Novkovic I., Tosic R.

Polish Journal of Environmental Studies

|

2013

|

tom 22

|

nr 4

The principal aim of this research was to determine the vulnerability of two national parks (Fruška Gora and Djerdap) along the Serbian Danube region, which are protected areas of great national and international significance, to major natural hazards. An analysis of the potential hazards to the protected natural and cultural- historical values was performed, and the adequacy of the allocation of protected zones was then examined according to the vulnerabilities of these values to natural hazards. The creation of a multi-hazard map is the first important task for the prevention and mitigation of natural hazards in the risk-prone area. This research represents an important step in completing the European database by including data from Serbia, a territory that was a blank area in previous hazard maps.

5

Regional differences in the vulnerability of substantia nigra dopaminergic neurons in weaver mice

72%

Marti J., Santa-Cruz M. C., Molina V., Serra R., Bayer S. A., Ghetti B., Hervas J. P.

Acta Neurobiologiae Experimentalis

|

2009

|

tom 69

|

nr 2

198-206

Vulnerability of midbrain dopaminergic (DA) neurons in the weaver mouse was studied at postnatal (P) days 8 and 90, in chosen coronal levels throughout the anteroposterior (AP) extent of the substantia nigra pars compacta (SNc). Wild-type (+/+) and homozygous weaver (wv/wv) mice used were the offspring of pregnant dams injected in several cases with tritiated thymidine on embryonic days 11-15. DA neurons were identified for their tyrosine hydroxylase immunoreactivity. Data reveal that at P8, the frequency of both +/+ and wv/wv late-generated DA cells increases from rostral to caudal SNc. No apparent DA-cell loss was observed at P8 in the mutant genotype, irrespective of the AP level considered. However, throughout the AP, there was a significant reduction in the number of these neurons at any level in 90-day-old weavers. Comparison of P8 and P90 +/+ SNc suggests that cell death is not a major aspect in the developmental regulation of normal DA neurons, although numerical cell depletion in the postnatal development of weaver SNc probably results from the amplification of a basal cell-death process, which affected all the coronal levels studied.

6

Integrated Drought Management Programme in Central and Eastern Europe (IDMP CEE)

72%

Kindler J., Okruszko T.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

|

2014

|

tom 46

|

nr 3

The Central and Eastern Europe (CEE) is one of the European regions seriously vulnerable to drought events and there is an urgent need in the region to develop better drought management systems. In February 2013 the Global Water Partnership for Central and Eastern Europe region launched the Integrated Drought Management Programme (IDMP CEE) involving more than 40 organizations from 10 CEE countries. The Programme is structured to provide both policy advice and practical solutions in drought management. The specifi c objectives of the IDMP CEE are to develop understanding, knowledge and planning for integrated drought management, map and assess the impact of droughts. Moreover, several case studies (demonstration projects) in pilot basins involving local communities are initiated. The national governments are supported to incorporate drought management in their national programs, develop monitoring framework and raise drought awareness through effi cient dissemination mechanisms. All countries of the CEE region need to improve both their short-term and long-term responses across sectors to meteorological, agricultural and hydrological droughts. In spite of the fact that several basins in the region are of transboundary character, regional integration of drought monitoring and early warning is not at the level desired. Whilst the lack of water is the primary cause of drought, there are still a large number of factors which exacerbate and intensify its effects. If these factors – many of which have little to do with water per se – are adequately managed, the consequences of the lack of water can be greatly reduced. For example, there are several specifi c problems and challenges related to the current process of economic transition in the region, including macroeconomic and financial problems.

7

The analysis of increments of internal damage to wheat grain affected by dynamic loading

72%

Niewczas J., Grundas S., Slipek Z.

International Agrophysics

|

1994

|

tom 08

|

nr 2

8

The role of sphingosine kinases/sphingosine-1-phosphate in the regulation of alpha-synuclein and amyloid beta precursor protein secretion. Implications for neurodegenerative disorders

58%

Jesko H., Okada T., Nakamura S., Strosznajder R. P.

Acta Neurobiologiae Experimentalis

|

2013

|

tom 73

|

nr 1

Sphingolipid deregulation may be an important factor of age-related neuronal stress vulnerability. Current data suggests potential links between sphingosine kinases (SphK1&2), their product sphingosine1-phosphate (S1P) and age-related protein conformation diseases. The aim of this study was to investigate a possible role of SphKs in alpha-synuclein (ASN) and amyloid beta (ABeta) precursor protein (APP) level and secretion. The studies were carried out using human SH-SY5Y neuroblastoma cell line stably transfected with the human gene for α-synuclein (ASNwt). Sphingosine kinase inhibitor (SKI) significantly increased ASN secretion in concentration-dependent manner. S1P also displayed similar influence. Neither compound exerted any significant effect on the ASN protein level. S1P may act via cell surface receptors or as an intracellular second messenger. The similar effect of S1P and SphK inhibitors on ASN secretion may suggest that the regulation of its release is critically dependent on the varied (intra)cellular targets of SphKs and downstream signaling pathways. We have found that stable human ASNwt expression in SH-SY5Y cells caused a three-fold, significant increase of the cellular APP level. In ASN-transfected cells S1P enhanced APP secretion and reduced its intracellular level. This could be linked to the recently reported effect of S1P on secretase beta activity. Inhibition of SphKs significantly decreased APP secretion. In summary our data indicates that endogenous ASN regulates APP level in SH-SY5Y cells and that sphingolipids play a crucial role in the secretion of ASN and APP. These processes may have significant impact on neuronal survival and health.

9

The use of Pigeon pea (Cajanus cajan) for drought mitigation in Nigeria

58%

Emefiene M. E., Salaudeen A. B., Yaroson A. Y.

International Letters of Natural Sciences

|

2013

|

tom 01

Drought poses one of the most important environmental constraints to plant survival and productivity and by implication-food insecurity in the tropics. Pigeon pea (Cajanus cajan) has the potential of fertilizing the soil thereby improving agricultural production and ensure green environmental and ecosystem stability. Despite the ability of the plant to improve soil fertility and promote greening environment, it has not attracted adequate awareness as a soil improvement plant. This paper highlights the information on the plant in order to intensify awareness for its widespread adoption to achieve the much desired sustainable resource use for greening our economy and environmental management. The successful widespread adoption of the plant will translate to effective drought, desertification and sustainable climate change mitigation approach in Nigeria.

10

Natural and human factors in environmental disasters

58%

Verstappen H. T.

Geographia Polonica

|

2003

|

tom 76

|

nr 2

11

Heath species and heathlands of Italy: an analysis of their relationships under the perspective of climate change based on the description of habitats used for the project "Carta della Natura" (Italian Map of Nature)

51%

Feoli E.

Ecological Questions

|

2010

|

tom 12

The project "Italian Map of Nature" (IMN) is dedicated to create an electronic map (GIS) of the environmental state (quality and vulnerability) of the Italian territory at different scales. Up to now the GIS of IMN is offering maps at a scale 1:50,000. The environmental quality is estimated on the basis of biological description of habitats that can be mapped at this scale, the vulnerability on the basis of variables related to the anthropogenic pressure. In this paper I want to show that the information collected for creating the data base of habitats for mapping purposes may be useful for getting information related to the climatic niche width of the species considered habitat indicators. In this paper I consider the heath species characterizing the IMN habitats of Italy in order to get an indirect estimation of the climatic vulnerability of Italian heathlands. To measure the climatic niche width of the species I propose a formula that combines the number of habitats (they characterize) with the heterogeneity of the habitats according to their distribution in altitudinal belts and in biogeographic regions. The results offer parameters on which to base a discussion for policy conservation of heaths and heathlands in Italy under the perspective of climate change.

Ograniczanie wyników

Pressurized methods for grading the vulnerability of pods splitting

Vulnerability of sun and shade canopy leaves under natural environmental stresses

Flood risk and vulnerability in the changing climate

Vulnerability of national parks to natural hazards in the Serbian Danube region

Regional differences in the vulnerability of substantia nigra dopaminergic neurons in weaver mice

Integrated Drought Management Programme in Central and Eastern Europe (IDMP CEE)

The analysis of increments of internal damage to wheat grain affected by dynamic loading

The role of sphingosine kinases/sphingosine-1-phosphate in the regulation of alpha-synuclein and amyloid beta precursor protein secretion. Implications for neurodegenerative disorders

The use of Pigeon pea (Cajanus cajan) for drought mitigation in Nigeria

Natural and human factors in environmental disasters

Heath species and heathlands of Italy: an analysis of their relationships under the perspective of climate change based on the description of habitats used for the project "Carta della Natura" (Italian Map of Nature)