We present coupled sulfur and oxygen isotope data from sulfur nodules and surrounding gypsum, as well as iron and manganese concentration data, from the Lisan Formation near the Dead Sea (Israel). The sulfur isotope composition in the nodules ranges between -9 and -11‰, 27 to 29‰ lighter than the surrounding gypsum, while the oxygen isotope composition of the gypsum is constant around 24‰. The ...

soilless media have different physical properties. change in air space of mix substrate can cause change in fertigation management and plant growth and yield. physical properties (water holding capacity, effective air-filled pore space, effective pore space) of 50 mixed substrates were measured to evaluate the effect of air-filled pore space on growth of tomato transplant and it's water us...

The global overturning ocean circulation plays a key role in climate by distributing heat around the Earth and triggering or amplifying major changes. Neodymium (Nd) isotopes are widely used to trace present-day past changes; however, their value as tracer has been increasingly challenged studies that have focused on processes can modify seawater Nd isotope ratios (for example, interaction with...

constant rate of strain (crs) consolidation is a rapid test method used for determination of compressibility of clayey soils. in a crs test, the appropriate strain rate is selected based on pore water pressure ratio, i.e. the ratio of pore pressure to total stress. in the present study, to investigate the effect of strain rate on variation of relative pore water pressure, four different clay sa...

The accurate evaluation of pore pressure and injected volume is crucial for the laboratory characterization hydromechanical responses rock fractures. This study reports a series experiments to systematically demonstrate effects external temperature dead on measurements in fracture. We characterize hydraulic aperture fracture as function effective normal stress using exponential model. model the...

Giant bulla; Pneumothorax; Anaesthesia management; Spontaneous breathing; Dexmedetomidine Abstract Lung bulla occupying more than 30% of hemithorax is described as giant bulla which is now treated surgically with positive outcomes. During intraoperative period, these patients are vulnerable to hyperinflation, hypoxia and hypercarbia due to significantly increased dead space and reduced function...

measurement of soil saturated hydraulic conductivity, ks, is normally affected by flow patterns such as macro pore; however, most current techniques do  not differentiate flow types, causing major problems in describing water and chemical flows within the soil matrix. this study compares eight models for scaling ks and predicted matrix and macro pore ks, using a database composed of 50 datasets...

In this study, Nd-doped cobalt oxide (Nd-Co3O4) nanoparticles were prepared by a combustion synthesis procedure using Co(acac)3 complex. The nanoparticles were characterized by infrared spectroscopy (IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). Then, the effect of Nd-Co3O4 ...