Video Endoscopy: Removal of Retained Sewing Needles from the Duodenum

Gajbhiye, Ashok; Gajbhiye, Raj; Tirupude, Bhupesh H.; Bajaj, Prasang; Gupta, Tarush

doi:10.1007/s12262-011-0360-0

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…In view of all the aforementioned results and discussions, it might be worthwhile to speculate that PPO with benzoyl 68 and sulfonyl 69,70 groups, which were reported in the literature and probably might contain hydroxy end groups formed during their respective chemical modification of PPO, could form miscible blends with SAN. Furthermore, NPPO with appropriate amount of nitro groups might also be miscible with polymers containing polar groups, which include copolymers of styrene and maleic anhydride, 38 poly(n-alkyl methacrylate), 64 poly(methyl methacrylate), 67 poly(methacrylamide), 71 and poly(vinyl acetate).…”

Section: Dma Data Of Ppo/san Blends and Nppo/san Blendsmentioning

confidence: 82%

Miscibility of nitrated poly(phenylene oxide) and styrene–acrylonitrile copolymer blends

Chen

Yan

Zhang

et al. 2023

J of Applied Polymer Sci

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Poly(2,6-dimethyl-1, 4-phenylene oxide) (PPO) is a well-known high heat-resistant polymer and miscible with polystyrene. However, it is not miscible with many polymers containing polar groups. In the present study, PPO was nitrated to prepare a nitrated PPO (NPPO) containing polar nitro groups and blended with a copolymer of styrene/acrylonitrile (SAN). Dynamic mechanical analysis (DMA) data showed that NPPO in SAN-rich phase was miscible with SAN, while NPPO in NPPO-rich phase was partially phase-separated from SAN, both over the entire blend composition range from NPPO wt. fractions of 0.1-0.5 investigated for this work. Analyses of Fourier-transform infrared (FTIR) and ultra-violet (UV-VIS) spectra indicated that the miscibility of NPPO with SAN was caused by intermolecular hydrogen bonding of C N group of SAN with OH end-group of NPPO in the NPPO/SAN blends. NPPO's OH end-group, meta-nitro 2,6-dimethyl phenol, was produced during nitration of PPO due to chain scission of aryl ether bond. Besides the intermolecular hydrogen bonding, dipolediplo interaction of the C N and nitro groups resulted in dissociation of the C N dimers and trimers to the C N monomers in the NPPO/SAN blends.

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Section: Dma Data Of Ppo/san Blends and Nppo/san Blendsmentioning

confidence: 82%

Miscibility of nitrated poly(phenylene oxide) and styrene–acrylonitrile copolymer blends

Chen

Yan

Zhang

et al. 2023

J of Applied Polymer Sci

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“…These organisms are able to effectively accumulate several inorganic nutrients and pollutants in their body without suffering significant damage. However, more advanced and more complex organisms consuming them can create much higher concentrations in their cells and tissues through bioaccumulation than it was in the initial environmental media [1][2].…”

Section: Introductionmentioning

confidence: 99%

The Development of Analytical Methods for the Elemental Determination of Biotic Indicators Present in Aquatic Ecosystems

et al. 2017

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ABSTRACT. In our research we investigate the accumulation extent of the inorganic contaminants accessing the aquatic food chain, including zooplankton and fish species through model experiments. In this paper we discuss the preliminary experiments considering the measurement of iron and manganese accumulated in Artemia sp. after hatched and reared in metal contaminated model media. The goal is to develop the sample preparation and analytical methods required for the determination of metals adsorbed in the studied organisms. We proved that rinsing the zooplankton organisms three times with 2 mL per grams (wet weight Artemia) of rinsing solution prior to the sample preparation process decreased the possibility of analytical error. European Reference Material of fish tissue (ERM ® -BB422) was used to validate the applied sample preparation and atomic spectrometric methods. The average recovery value for the measured elements by open system digestion with conventional heating was 96% and 92% with microwave digestion. With MP-AES 99% and 92% were gained, respectively. According to our results no significant difference occurred between the digestion in open system with conventional heating and microwave assisted digestion as well as the cost effective microwave plasma atomic emission spectrometry (MP-AES) proved to be appropriate for the routine quantitative analysis of adsorbed elements in zooplankton organisms and fish tissues.

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Video Endoscopy: Removal of Retained Sewing Needles from the Duodenum

Cited by 2 publications

References 5 publications

Miscibility of nitrated poly(phenylene oxide) and styrene–acrylonitrile copolymer blends

Miscibility of nitrated poly(phenylene oxide) and styrene–acrylonitrile copolymer blends

The Development of Analytical Methods for the Elemental Determination of Biotic Indicators Present in Aquatic Ecosystems

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