The unique challenges presented by metabolomics have driven the development of new mass spectrometry (MS)-based techniques for small molecule analysis. We have previously demonstrated silicon nanopost arrays (NAPA) to be an effective substrate for laser desorption ionization (LDI) of small molecules for MS. However, the utility of NAPA-LDI-MS for a wide range of metabolite classes has not been ...

The computational properties of second-order lossless discrete integrator/differentiator (LDI/LDD) allpass filters are studied, where the resource requirements in bit-serial hardware implementations are given particular interest. The properties of the LDI/LDD filters are compared to the corresponding properties of second-order wave digital (WD) filters using three-port series adaptors. Two impl...

INTRODUCTION Laser Doppler imaging (LDI) is a relatively new method for assessing the functional aspect of superficial skin blood flow in systemic sclerosis (SSc) and Raynaud's phenomenon. The present study investigated the dynamic behavior of digital skin microvascular blood flow before and after cold stimulus (CS) in SSc patients and in healthy controls by means of a comprehensive approach of...

The impact of livestock farming on the incidence of human Shiga toxin-producing Escherichia coli (STEC) infection was assessed by using several livestock density indicators (LDI) that were generated in a systematic approach. A total of 80 LDI were considered suitable proxy measures for livestock density. Multivariate Poisson regression identified several LDI as having a significant spatial asso...

Linear duration invariants (LDIs) are important safety properties of real-time systems. In this paper, we reduce the problem of verification of a network of timed automata against an LDI to an equivalent problem of model checking whether a failure state is never reached. Our approach is first to transform each component automaton Ai of the network A to an automaton Gi. The transformation helps ...

BACKGROUND It has been indicated that moderate or high dose of X-irradiation could delay fracture union and cause osteoradionecrosis, in part, mediated by its effect on proliferation and differentiation of osteoblasts. However, whether low dose irradiation (LDI) has similar roles on osteoblasts is still unknown. In this study, we investigated whether and to what extent LDI could affect the prol...

Laser desorption ionization (LDI) and ion mobility mass spectrometry (IM-MS) are applied to study molecular weight distribution and cross sections of petroleum asphaltene (ASPH) and deasphaltened oils (DAO). Ion mobility data confirmed the presence of gas-phase aggregation in LDI experiments. Most of the molecules with MW > 3000 g/mol in LDI result from gas-phase aggregation. Two-dimensional (2...

The layered depth image (LDI) is a popular approach to represent three-dimensional objects with complex geometry for image-based rendering (IBR). LDI contains several attribute values together with multiple layers at each pixel location. In this paper, we propose an efficient preprocessing algorithm to compress depth and color information of LDI. Considering each depth value as a point in the t...

Recently, Melhem presented a ”new” class of low-diameter interconnection (LDI) networks in this journal [10]. We note that LDI networks are the same as the previously known generalized de Bruijn graphs, point out an error in the decomposition of LDI networks into permutations, and find that the correct decomposition scheme is an instance of arc coloring for coset graphs. Hence, we pursue a numb...

INTRODUCTION The main treatment of burns is early excision of injured tissues. AIM TO COMPARE TWO DIFFERENT METHODS OF EXAMINATION OF BURNED PATIENTS: clinical burn depth examination (CDE) and laser Doppler imaging (LDI). MATERIAL AND METHODS A prospective randomized study of 57 burn patients treated in 2009-2011 was carried out. The burned patients were randomized into a CDE group and an L...