In this work we study how to incorporate risk control to the generation of ultimate pits when orebodies are modeled through a finite number of conditional simulations. To control risk we consider a chance constraint on the value of the ultimate pit. We incorporate this measure into the generation of ultimate pits by solving a stochastic programming version of the ultimate pit problem. We compar...

– Comprehensive geophysical assessment of huge pits; ERT, GPR, mag and EM. Novel approach to testing interpreting pits via coring. Largest pit circuit confirmed in both the Stonehenge landscape UK.

Pitvipers (Viperidae: Crotalinae) possess thermal radiation receptors, the facial pits, which allow them to detect modest temperature fluctuations within their environments. It was previously thought that these organs were used solely to aid in prey acquisition, but recent findings demonstrated that western diamondback rattlesnakes (Crotalus atrox) use them to direct behavioral thermoregulation...

The ultrastructure of the scolex tegument, bothridial pits (=ciliated pits) and rhyncheal system of Otobothrium mugilis Hiscock, 1954 is described from plerocerci collected from the teleosts Arius graeffei Kner et Steindachner and Mugil cephalus Linnaeus. Scanning electron microscopy revealed that filamentous microtriches with shortened caps are abundant across the entire surface of the tegumen...

Low density lipoprotein (LDL) and epidermal growth factor (EGF) bind to receptors on the surface of human fibroblasts and are internalized in coated vesicles. Each of the ligands has been studied separately by electron microscopy in human fibroblasts using ferritin-LDL as one visual probe and 125I-EGF as a second visual probe. A mutant strain of human fibroblasts (J.D.) has been described in wh...

The oxidation of highly oriented pyrolytic graphite (HOPG) in air at elevated temperatures was studied by examination of the oxidized HOPG by scanning tunneling microscopy (STM). Etch pits of uniform size and monolayer depth were readily formed on preexisting defects or generated vacancies in the HOPG basal plane by heating freshly cleaved HOPG samples in air at 650 OC. The density of the pits ...

Background and Aims. To explore the association of magnifying endoscopic (ME) findings with histopathology and relapse in ulcerative colitis (UC). Methods. Forty-six patients with UC underwent ME with narrow band imaging (NBI) and crystal violet staining and were followed for more than 12 months. ME findings with vital staining were classified into ME-A, regular arrangement of round to oval pit...

The article considers etch pits that appear in metals and alloys during metallographic etching as an artifact. optical contrasting tools capabilities, such dark field, polarized light, differential interference contrast detecting pits, are demonstrated.

Crotaline snakes (family Viperidae, subfamily Crotalinae) are unique among snakes in the possession of facial pits situated on each side of the head between the nostril and the eye (Klauber, 1972). These organs are depressions with highly innervated membranes at their bases that have a heat-sensing function and that transmit information to the part of the brain that receives visual data (Desmou...