Problem statement: Repeated observation of a given area over time yields potential for many forms of change detection analysis. These repeated observations are confounded in terms of radiometric consistency due to changes in sensor calibration over time, differences in illumination, observation angles and variation in atmospheric effects. Also major problem with satellite images is that regions...

Although increasing evidence has provided that soil respiration is strongly related to recent canopy photosynthesis, doubts remain as to the extent to which primary productivity controls soil respiratory and the speed of the link between soil respiration and photosynthesis. Based on the automated measurements of soil respiration and eddy covariance measurements of ecosystem photosynthesis (i.e....

O poder das imagens (paradas e em movimento) de nos absorver às vezes as faz parecer mais reais do que a realidade. Seguindo os passos Martin Heidegger Stanley Cavell, este artigo tenta dar sentido histórico filosófico esse sentimento, remontando-o mudanças época nossa experiência começaram com o advento da modernidade. Depois destacar implicações custos dessas mudanças, aponto para formas alte...

A 27-year old man with a history of achalasia presented for an elective laparoscopic pylorotomy under general anesthesia. He was well with no significant comorbidities nor risk factors for hyperuricemia. The patient underwent routine preoperative screening and preparation. He was intubated and a urinary catheter was inserted prior to the start of surgery. A total intravenous anesthesia techniqu...

Land surface temperature (LST) is an important variable in climate, hydrologic, ecological, biophysical and biochemical studies (Mildrexler et al., 2011). The most effective way to obtain LST measurements is through satellites. Presently, LST from moderate resolution imaging spectroradiometer (MODIS) sensor is applied in various fields due to its high spatial and temporal availability over the ...

Purpose: To evaluate the macroand micro-nutrient elements of some commercially available fruit juices in Serbia. Methods: Inductively coupled plasma optical emission spectrometry (ICP-OES) technique was employed for determination of the major and minor elements in samples of two different types of fruit juices clear and cloudy. Results: Among macro-nutrient elements, potassium (K) had the highe...

Monthly climate data of days with clear and cloudy skies at 38 stations (1991–2017) daily visual observations total cloud amounts (TCA) available six principal (1992–2017) were used to investigate regional, subregional, temporal characteristics cloudiness in Serbia. Annual, seasonal, monthly means the analysis. Results showed differences due influences from topography, predominant synoptic situ...

SCIAMACHY limb-scatter measurements allow the continuous mapping of noctilucent clouds (NLCs) as well as the retrieval of NLC particle sizes since 2002. Longterm measurements of NLC particle sizes require high instrument stability or an accurate knowledge of the changing calibration parameters. For the NLC measurements we employ measurements in SCIAMACHY channel 1, whose transmission decreased ...

A satellite remote sensing methodology has been developed to retrieve 3D ice water content (IWC) and mean effective ice crystal size of cirrus clouds from satellite data on the basis of a combination of the conventional retrieval of cloud optical depth and particle size in a horizontal plane and a parameterization of the vertical cloud profile involving temperature from sounding and/or analysis...