We describe a new species of frog from the eastern slopes Andes in central Peru. Pristimantis sira sp. nov. has distinctive crossing mark on iris and no tympanum. The is closely related to P. antisuyu Catenazzi & Lehr, 2018, cruciocularis Lundberg, Aguilar von May, 2006, erythroinguinis but easily differentiable by lacking colour blotches groins. inhabits mountain forests 1550 2200 m a....

In the present study, the stable isotopes υ18O and υ2H were used for assessment of the water balance in a heterogeneously structured catchment area in the Lusatian Lignite Mining District, in particular, for estimation of the annual groundwater inflow and outflow (IGW and OGW) of Mining Lake Plessa 117. The application of stable isotopes was possible since the water exchange in the catchment ar...

We survey the progress (or lack thereof!) that has been made on some questions about the p-adic slopes of modular forms that were raised by the first author in [Buz05], discuss strategies for making further progress, and examine other related questions.

16 When increasing the rates of subcritical flow on gentle slopes, the bed successively produces 17 ripples, dunes and flat beds. Antidunes (defined here as all bed undulations for which the 18 surface gravity waves are in phase with the bed profile) appear only in high flow rates and 19 may be found in some extreme natural flow events. Inversely, on steep slopes flume 20 experiment (S≥1% appro...

In addition to the technical and economic advantages of blasting rocks from open-pit mining, this method extraction can produce effects with a direct impact in area near open pit. Blasting works generates such as seismic waves that cause vibrations, rock throws, noise toxic gases. When their intensity scope are not systematically evaluated analysed, serious consequences for people, civil / indu...

Rising demand for minerals and metals, including for use in the technology sector, has led to a resurgence of interest in exploration of mineral resources located on the seabed. Such resources, whether seafloor massive (polymetallic) sulfides around hydrothermal vents, cobalt-rich crusts (CRCs) on the flanks of seamounts or fields of manganese (polymetallic) nodules on the abyssal plains, canno...

Abstract PT. Nusa Cendana is a mining company operating andesite in Taman Ayu Gerung Village, District, West Lombok Regency, Tenggara Province. Andesite criteria are classified as hard and difficult to separate. carries out activities with quarry system. has problem on the slopes because current slope 85°, many joints cause landslides. Ideally, 70°. Slope stability used determine slope’s safety...