Introduction Guarani Aquifer System (SAG) is the formal denomination for a transboundary aquifer underlying four countries (Argentina, Brazil, Paraguay and Uruguay) in South America. Due to its strategic importance, a joint research project aiming for sustainable management and preservation of the aquifer was initiated by the four neighbour countries together. In this work, an overview of hydro...

Please cite this article in press as: Ayotte, J.D., trace elements at water-supply wells. Appl. Geo The effects of human-induced alteration of groundwater flow patterns on concentrations of naturallyoccurring trace elements were examined in five hydrologically distinct aquifer systems in the USA. Although naturally occurring, these trace elements can exceed concentrations that are considered ha...

The recession flow analysis of Brutsaert and Nieber [1977] extended by Troch et al. [1993] to estimate aquifer parameters (saturated hydraulic conductivity and mean aquifer depth) is examined by means of a numerical model. It is found to be reliable for the estimation of the catchment-scale saturated hydraulic conductivity and mean aquifer depth. Increasing the complexity of the synthetic water...

The capacity of a population of primary afferent fibers to signal information about a sphere indenting the fingerpad is limited by factors such as the inhomogeneity of sensitivity among the afferents, the pattern and density of innervation, and the effects of noise (response variability). Using experimental data recorded from single slowly adapting type I afferents (SAIs), we simulated the resp...

Water quality conditions have been assessed in the Río Vélez coastal aquifer (Andalusia, South Spain: an area of important agricultural and touristic development). This shallow fluvio-deltaic aquifer consists of coarse detrital deposits, of Quaternary age, that extend over about 20 km, being subdivided in two sectors –fluvial and deltaicby a substratum elevation. The deltaic sector is highly vu...

As águas subterrâneas desempenham um papel essencial no ciclo hidrológico da região amazônica, constituindo uma reserva significativa de água alta qualidade, utilizável para diversos fins. No entanto, dados hidrogeológicos na são ainda escassos, com estudos concentrados particularmente em centros mais urbanizados. Na Província Petrolífera Urucu, município Coari/AM, onde está instalada a Base Op...

PURPOSE To investigate the effectiveness of low-level laser therapy (LLLT) in addition to exercise programme on shoulder function in subacromial impingement syndrome (SAIS). METHOD Sixty-seven patients with SAIS were randomly assigned to either a group that received laser (n = 34) or a group that received placebo Laser (n = 26). Pain, functional assessment, disability and muscle strength of s...

Studi yang dilakukan di daerah Desa Wakorumba, Kecamatan Wakorumba Selatan, Kabupaten Muna, Provinsi Sulawesi Tenggara, terletak koordinat 04º 58' 20'' - 55' 0'' LS dan 122º 50' -122º 52' BT. Tujuan studi mendasarkan pada analisis petrografi adalah untuk mengetahui jenis batugamping tipe diagenesis terjadi Formasi Wapulaka, Sampolakosa, Anggota Batugamping Tondo. Berdasarkan kenampakan fisik...

Despite several studies on the supreme audit institutions (SAIs), research question of what maximises SAI auditors' utility remains unanswered. Since SAIs are key public suppliers services, it is essential to determine how they perform their duties and obligations stakeholders. This paper follows grounded theory paradigm using qualitative quantitative methods. study pioneering in many ways beca...

An analytical solution for three-dimensional (3D) flow in the storative semiconfining layers of a leaky aquifer fully penetrated by a production well is developed in this article to provide a method from which accurate hydraulic parameters in the semiconfining layers can be derived from aquifer test data. The analysis of synthetic aquifer test data with the 3D analytical solution in the semicon...