Simulating future uncertainty to guide the selection of survey designs for long-term monitoring

Abstract An enzyme-linked immunoassay (ELISA) was used for screening atrazine residues in soil. Samples were annually collected in Southern Germany between 1993 and 1998. An average of 419.5 samples was analyzed per year amounting to 2517 samples. The fraction of positive samples defined by atrazine concentrations >100 μg/kg soil decreased successively from 8% (corresponding to 33 samples) in 1993 to 0.6% (corresponding to 2 samples) in 1998. All positive samples and a selection of negative samples were subsequently validated by HPLC. Comparison of ELISA and HPLC data yielded correlation coefficient values of r= 0.958–0.981 (n= 18–47), except for 1995 when only a correlation of r= 0.864 (n= 18) was obtained. Four samples were overestimated and another 4 were underestimated with respect to the atrazine threshold value of 100 μg/kg soil as revealed by HPLC validation. Thus, 99.68% of 2517 analyzed samples were correctly evaluated. The precision and reproducibility of the ELISA were adequate for a prescreening tool. The low cost per sample and the high sample throughput are not yet achievable by conventional analytical methods. The described combination of ELISA and HPLC has the potential to take advantage of both methods and to restrict determination errors to a minimum.

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MACRO PHOTOGRAMMETRY FOR THE DAMAGE ASSESSMENT OF ARTWORK PAINTED SURFACES

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-archives-xlii-2-w15-101-2019 ◽

2019 ◽

Vol XLII-2/W15 ◽

pp. 101-107 ◽

Cited By ~ 3

Author(s):

L. M. Angheluță ◽

R. Rădvan

Keyword(s):

Damage Assessment ◽

Complementary Method ◽

Physical Deterioration ◽

Different Types ◽

Long Term Monitoring ◽

3D Digitization ◽

Term Monitoring ◽

Selection Of ◽

Full Body

<p><strong>Abstract.</strong> In this paper we are presenting our approach and workflow for macro photogrammetry as a complementary method for 3D digitization of polychromies on wood support. Macro photogrammetry can be used for detailed documentation of physical damages in painting layers, underlayers or support. For a better presentation of the context, a selection of typical physical damages, relevant to this study, are explained. Two case studies are presented. Two wooden icons realized with different techniques and presenting different types of physical deterioration. The experiments detailed within this paper represent the first epoch of long-term monitoring of the restoration interventions for each of these icons. All the stage of our workflow is thoroughly detailed with acquisition parameters and processing settings in order to better understand the results and where things can be improved. For each icon a full body photogrammetry process is described, followed by macro photogrammetry on smaller selected areas on the icons' surfaces. Macro magnifications of 1&thinsp;:&thinsp;1 and 2&thinsp;:&thinsp;1 are obtained by using a dedicated macro lens and extension rings. Lighting setups and focus stacking process are also described for a better understanding of the parameters and settings used.</p>

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Divided Eyelid Nevus: Surgical Repair Discussion and Case Reports From Northwestern China

Plastic Surgery ◽

10.1177/2292550320928559 ◽

2020 ◽

Vol 28 (4) ◽

pp. 249-253

Author(s):

Xianying Zhang ◽

Wen Tang ◽

Liu Yi ◽

Liwei Xu ◽

Chengxin Xu ◽

...

Keyword(s):

Surgical Repair ◽

Case Reports ◽

Surgical Approaches ◽

Second Stage ◽

Long Term Monitoring ◽

Surgical Treatments ◽

Term Monitoring ◽

Selection Of

Currently, due to the lack of long-term postoperative follow-up outcomes of the congenital divided eyelid nevus, we described our surgical approaches and presented the functional and cosmetic results of 13 patients with an average of 5-year follow-up. Based on the surgical treatments and the follow-ups, the selection of total or subtotal excision depends on the lesion location and the use of blepharoplasty approaches is determined by defect size. The CO2 laser may be a useful second-stage procedure to ablate remnant lesions, but long-term monitoring is required.

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