Publications by authors named "Nikita Thakur"
Munition constituents (MC) in stormwater runoff have the potential to move these pollutants into receiving bodies at military installations. Here we present further evaluation of a passive and sustainable biofilter technology for removal of dissolved MC from simulated surface runoff by combined sorption-biodegradation processes under dynamic flow conditions. Columns were packed with MC sorbents Sphagnum peat moss and cationized (CAT) pine shavings with and without wood-based biochar.
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- The detection and cleanup of per- and polyfluoroalkyl substances (PFAS) is increasingly important due to their environmental contamination.
- Researchers are exploring low-temperature thermal treatment (200-500 °C) for PFAS, which requires less energy and infrastructure, but the byproducts of this process are not well understood.
- Using gas-phase infrared spectroscopy and multivariate curve resolution analysis, the study identifies and quantifies nine decomposition products from the thermal breakdown of potassium perfluorooctanesulfonate (PFOS-K) starting at 375 °C.
Article Synopsis
- PFAS are stable synthetic compounds found in the environment, raising health and ecological concerns.
- Traditional high-temperature incineration is effective for treating PFAS but requires significant resources, leading to interest in lower-temperature alternatives that may produce incomplete breakdown products.
- This study reveals that heating the PFAS compound PFHxS with salts at lower temperatures generates novel volatile organofluorine products like perfluorohexyl chloride and bromide, highlighting potential complexities in PFAS treatment strategies.
This multicenter retrospective study compared the performance of radiomics analysis coupled with machine learning (ML) with that of radiologists for the classification of breast tumors. A total of 93 consecutive women (mean age: 49 ± 12 years) with 104 histopathologically verified enhancing lesions (mean size: 22.8 ± 15.
View Article and Find Full Text PDFThe aim of this study was to determine the range of apparent diffusion coefficient (ADC) values for benign axillary lymph nodes in contrast to malignant axillary lymph nodes, and to define the optimal ADC thresholds for three different ADC parameters (minimum, maximum, and mean ADC) in differentiating between benign and malignant lymph nodes. This retrospective study included consecutive patients who underwent breast MRI from January 2017-December 2020. Two-year follow-up breast imaging or histopathology served as the reference standard for axillary lymph node status.
View Article and Find Full Text PDFBackground: Nearly 1 in 5 American children are obese. The primary purpose of this study is to evaluate the relationship between childhood obesity and perioperative complications, patient-reported outcomes (PRO), and functional recovery after closed reduction and percutaneous pinning (CRPP) of type II and III supracondylar humerus fractures.
Methods: Retrospective review of patients treated operatively with CRPP of Wilkins modification of the Gartland classification type II and III supracondylar humerus fractures was performed over a 1-year timeframe (July 1, 2016 to July 1, 2017).
Invasive cervical resorption is entirely uncommon entities and the etiology is poorly understood. A 19 year old patient presented with fractured upper left central incisor and sinus tract opening on the distobuccal aspect in cervical region. Radiographic examination shows irregular radiolucency over the coronal one-third and it extended externally towards the external invasive resorption.
View Article and Find Full Text PDFBackground And Aim: Ulcerative colitis (UC) and Crohn's disease (CD) are two major phenotypes of inflammatory bowel disease (IBD) that present with inflammation of the colon or the entire gastrointestinal tract, respectively. Genome-wide association studies have confirmed the role of nucleotide-binding oligomerization domain protein-2 (NOD2) variants and identified several other genes associated with IBD. We investigated whether variants in NOD2 and interleukin-23 receptor (IL23R) are associated with IBD in a well-characterized case-control cohort from southern India.
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- Peutz-Jeghers syndrome (PJS) is a rare cancer syndrome linked to mutations in the STK11 gene; however, not all cases can be explained by these mutations, leading to exploration of other genetic factors.
- In this study, researchers sequenced the STK11 gene in 16 individuals from ten Indian families and found a novel mutation in only one patient, suggesting the complexity of PJS genetics.
- The findings indicate that while STK11 mutations can be present in some cases, there likely exists other genetic factors or larger genomic changes contributing to PJS among Indian patients that require more research.