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Riscuri ?i Catastrofe , 2013,
Abstract: Analysis of drought phenomenon within Oltenia Plain, Romania (1961-2010). Oltenia Plain, located in the south-western part of the Romanian Plain, is characterized by a moderate pluviometric regime (compared to the pluviometric patterns of plain areas from Romania) and, thus, each negative deviation generates certain complex phenomena, such as drought, that trigger perturbations of the natural environment and economic activities. Thus, determining the annual, seasonal and monthly negative deviations of precipitation at local scale is extremely important in order to establish accurate trends of drought phenomenon. We used 50-year time series (1961-2010) for six meteorological stations. The Standardized Precipitation Anomaly (SPA) and Weighted Anomaly of Standardized Precipitation (WASP) indicate a high predominance of normal years (>70%), both at annual and monthly levels. However, there clearly resulted a deterioration of the rainfall regime in the past three decades – normal years, but negative deviations in 80% of the cases; the driest years in the last five decades (1992, 1993, 2000, 2008); the wettest years (1999 and 2005). Linear regression emphasizes an obvious negative trend of the SPA values for the western and eastern parts of the plain (D.T. Severin, Caracal) and a positive trend for the northern extremity (Craiova); the rest of the region displays a slightly negative trend. At monthly level, the most exposed season is summer, even if drought affected the region in all the months of the year. For the last decade, the impact of drought was also assessed based on satellite images SPOT- VEGETATION and TERRA/MODIS. We used the products NDVI (Normalized Difference Vegetation Index), 10-day synthesis and 1 km spatial resolution and LAI (Leaf Area Index) 8-day synthesis, 1 km spatial resolution, data supplied by French Spatial Agency and NASA. The analysis of these products allowed us to emphasize a spatial and temporal differentiation of the density of vegetation within Oltenia, mainly induced by rainfall deficit and variability.
Marius Lungu,Liliana Panaitescu
Present Environment and Sustainable Development , 2010,
Abstract: Snow blizzard violence causes snow dispel, crops are then subject to frost formation drifts in sheltered obstacles (on the outskirts of villages along the snow fences bordering the routes or railway embankments, the river valleys in small depressions etc.). Snowdrifts stop road and rail traffic, destroying walls and roofs of homes. Through its mechanical action on the ground objects, blizzard causes breaking of young branches, unveiling homes, breaking electrical telephone,telegraph wires, etc.
Daniel Constantin DIACONU
Lakes reservoirs and ponds , 2008,
Abstract: Siriu reservoir, owes it`s creation to the dam built on the river Buzau, in the town which bears the same name. The reservoir has a hydro energetic role, to diminish the maximum flow and to provide water to the localities below. The partial exploitation of the lake, began in 1984; Since that time, the initial bed of the river began to accumulate large quantities of alluvia, reducing the retention capacity of the lake, which had a volume of 125 million m3. The changes produced are determined by many topographic surveys at the bottom of the lake.
Johanson-Blizzard syndrome  [cached]
Nabeel Almashraki,Mukarram Zainuddin Abdulnabee,Maja Sukalo,Abdullah Alrajoudi
World Journal of Gastroenterology , 2011, DOI: 10.3748/wjg.v17.i37.4247
Abstract: Johanson-Blizzard syndrome (JBS) is a rare autosomal recessive disease characterized by exocrine pancreatic insufficiency, hypoplastic or aplastic nasal alae, cutis aplasia on the scalp, and other features including developmental delay, failure to thrive, hearing loss, mental retardation, hypothyroidism, dental abnormalities, and anomalies in cardiac and genitourinary systems. More than 60 cases of this syndrome have been reported to date. We describe the case of a male infant with typical symptoms of JBS. In addition, a new clinical feature which has not previously been documented, that is anemia requiring frequent blood transfusions and mild to moderate thrombocytopenia was observed. A molecular study was performed which revealed a novel homozygous UBR1 mutation. Possible explanations for this new association are discussed.
Corrugation of Roads  [PDF]
Joseph A. Both,Daniel C. Hong,Douglas A. Kurtze
Physics , 2000, DOI: 10.1016/S0378-4371(01)00425-3
Abstract: We present a one dimensional model for the development of corrugations in roads subjected to compressive forces from a flux of cars. The cars are modeled as damped harmonic oscillators translating with constant horizontal velocity across the surface, and the road surface is subject to diffusive relaxation. We derive dimensionless coupled equations of motion for the positions of the cars and the road surface H(x,t), which contain two phenomenological variables: an effective diffusion constant Delta(H) that characterizes the relaxation of the road surface, and a function alpha(H) that characterizes the plasticity or erodibility of the road bed. Linear stability analysis shows that corrugations grow if the speed of the cars exceeds a critical value, which decreases if the flux of cars is increased. Modifying the model to enforce the simple fact that the normal force exerted by the road can never be negative seems to lead to restabilized, quasi-steady road shapes, in which the corrugation amplitude and phase velocity remain fixed.
Síndrome de Johanson-Blizzard: importancia do diagnóstico diferencial em pediatria
Vieira, Marta W.;Lopes, Vera L.G.S.;Teruya, Hiromi;Guimar?es-Lamonato, Leonardo;Oliveira, Lucila C.L.;Costa, Clóvis Duarte;
Jornal de Pediatria , 2002, DOI: 10.1590/S0021-75572002000500016
Abstract: objective: to promote a clinical entity that could be part of differential diagnosis of most disorders that affect the pediatric age group. description: we describe a brazilian girl affected by johanson-blizzard syndrome and review the literature. comments: johanson-blizzard syndrome is an autosomal recessive condition characterized by hypoplastic alae nasi, scalp defect, deafness and pancreatic insufficiency with malabsorption. looking at the major signs, this disorder should be considered as differential diagnosis in several pediatric diseases.
The ecological significance of roads in a National Park  [cached]
Ph.D, U. de V. Pienaar
Koedoe : African Protected Area Conservation and Science , 1968, DOI: 10.4102/koedoe.v11i1.759
Abstract: The ecological significance of roads in a National Park
David O. Whitten
Essays in Economic & Business History , 2000,
Abstract: The earliest European immigrants in America traveled on waterways and on pathways worn into the earth by animals and Native Americans. Once their communities began to thrive, settlers widened paths and cleared new roads and streets then began experimenting with inexpensive surfacing to reduce dust in dry weather and mud in wet. “Earth Roads Are Easy” investigates materials and techniques used to maintain primitive thoroughfares with a minimum of effort and expense. The options range from the mundane—clay, sand, gravel, calcium chloride, oil, and tar—to the extraordinary—water glass, adobe clay, beet juice, and carpeting. There is no more dfficult problem confronting highway engineers than that of properly constructing and maintaining an earth road. The work may be less spectacular than the construction and maintenance of hard-surfaced roads, but there is greater latitude in location, methods of construction and choice of materials, consequently there is more scope for the exercise of sound judgment on the part of the engineer.1
Plain Varieties  [PDF]
Gábor Bodnár,Herwig Hauser,Josef Schicho,Orlando Villamayor
Mathematics , 2008, DOI: 10.1112/blms/bdn078
Abstract: Algebraic varieties which are locally isomorphic to open subsets of affine space will be called {\em plain}. Plain varieties are smooth and rational. The converse is true for curves and surfaces, and unknown in general. It is shown that plain varieties are stable under blowup in smooth centers.
Rejoinder to Carnis on Private Roads
Walter E. Block
Libertarian Papers , 2010,
Abstract: Carnis (2009) is a commentary on a debate I (Block and Block, 1976; Block, 1978c) have been having with Tullock (1976) on the privatization of roads. The present paper is a rejoinder to Carnis (2009) who is highly critical of Tullock’s share of the debate, and offers some luke-warm support of my side of this issue, plus some criticisms of it.

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