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326 result(s) for "Kumar, Parvesh"
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570 The development and establishment of a Centralized Clinical and Translational Research Infrastructure at an Academic Medical Center
Objectives/Goals: Historically, the Univ. of Missouri (MU) Sch. of Medicine (SOM) is known for its strong clinical and education programs. In 2020, MU recruited an Executive Vice Chancellor (EVC) for Health Affairs and subsequently Dean of the SOM who initiated programmatic steps to develop and establish a centralized clinical and translational research (CTR) infrastructure. Methods/Study Population: In order to develop and establish a CTR infrastructure, the EVC/Dean of the SOM created and recruited to the combined position of the Associate Dean (AD) for CTR and Associate Director (ADR) of clinical research (CR) for the Ellis Fischel Cancer Ctr. (EFCC) in 2021. The AD CTR was appointed the Chair of the Clinical and Translational Science Unit (CTSU) Steering Committee with the charge of establishing a 10,000 sq. ft. CTSU to be housed in the newly built $225M Roy Blunt NextGen Precision Health Bldg. and for re-building the Clinical Trials Support Office (CTSO), and the Clinical Trials Office (CTO) at the EFCC in his other role as the ADR CR. The AD CTR was also charged with implementing the OnCore clinical trial management system (CTMS) to centrally track and fiscally manage SOM clinical trials. Results/Anticipated Results: Between 2021 and 2023, a CTR infrastructure was developed and established at the MU SOM. A total of 25 new clinical research staff (CRS) and leadership were hired that included a Sr. Dir. of CR Operations, clinical research nurses (CRNs) and coordinators (CRCs), Regulatory/Data/Fiscal/Project/Compliance/Coverage Analysis Coordinators between the CTSU/CTSO and the CTO of the EFCC. The CTSU was built with 10 FTE CRS [CRNs  =  5, CRCs  =  2, administrative staff  =  2, Sr. Lab. Tech.  =  1, and a manager]; the CTSO was re-built with 9 FTE CRS [Fiscal (n = 3), Project (n = 2), Compliance (n = 2), Coverage Analysis (n = 1) and Recruitment (n = 1) coordinators]. The EFCC CTO was re-built with 8 FTE CRS [CRNs  =  4, Fiscal (n = 1), Data (n = 1) & Regulatory (n = 2) coordinators]. The implementation of the OnCore CTMS tracking function was also completed. Discussion/Significance of Impact: Overall, the development and establishment of the CTR infrastructure has led to a significant increase and enhancement (e.g., capacity) to conduct clinical trials at the MU SOM. For example, this has led to a significant increase in the average annual enrollment to interventional oncology clinical trials [n = 82 (2021–2023) vs. n = 42 (2016–2020), p = 0.004].
Securing 5G Networks with Blockchain: On Authentication Strategies and Challenges
Fifth generation (5G) cellular network has an incredible feature to connect massive devices and gives promising services to various applications. EAP-AKA and 5G-AKA protocols are used in 5G for authentication. These existing authentication mechanisms is not well effective and challenged by vulnerabilities. This is posing serious threats to both privacy and network security. Blockchain is one of method to secure 5G authentication parameters. So, This paper is based on an analysis of blockchain-enabled authentication methods for 5G networks. It reviews multiple frameworks and provides a comparative analysis of their advantages, drawbacks, and opportunities for future research. we examine literature from three databases (Scopus, WoS, and MDPI) from 2019 to 2025. Inclusion and exclusion criteria are selected for extract quality of papers for analysis. only those papers are considered which have clear methodology, architectures, frameworks, or protocols relevant to the study. Finally, it gives future research directions by discussing challenges of existing frameworks.
Physical Investigation of Deformation Behaviour of Single and Twin Tunnel under Static Loading Condition
This paper presents a new testing method for the problems encountered in field testing. To this end, single-tunnel and twin-tunnel small-scale rock models are prepared in the laboratory. A new methodology is proposed to encounter problems that are faced during field testing. The test results show that rock strength characteristics, overburden pressure, and tunnel spacing have important effects on the stability of underground structures. For rocks with poor strength properties, the damage degree is greater. When the strength property of rock changes, the deformation value of unlined tunnels changes from 21.05% to 27.58%, while that of lined tunnels changes from 11% to 21.42%. Also, in the twin tunnel, the deformation value reduces from 20% to 15.78% when the spacing between the tunnels is increased. For the measurement of stress and deformation in tunnels, the results obtained from experiments are analyzed. The method adopted in this study helps determine the tunnel’s design parameters to make it safe under overlying static loads. Finally, the key factors affecting the stability of underground structures are determined by simulating the field conditions through experimental research.
Conversion of superior bread wheat genotype HD3209 carrying Lr19/Sr25 into CMS line for development of rust-resistant wheat hybrids
Hybrid development is one of the most promising strategies for boosting crop yields. Parental lines used to create hybrids must have good per se performance and disease resistance for developing superior hybrids. Indian wheat line HD3209 was developed by introducing the rust resistance genes Lr19/Sr25 into the background of popular wheat variety HD2932. The wheat line HD3209 carrying Lr19/Sr25 has been successfully and rapidly converted to the CMS line A-HD3209, with 96.01% background genome recovery, based on selection for agro-morphological traits, rust resistance, pollen sterility, and foreground and background analyses utilizing SSR markers. The converted CMS line A-HD3209 was completely sterile and nearly identical to the recurrent parent HD3209. Based on high per se performance and rust resistance, the study concludes that the derived CMS line A-HD3209 is promising and can be employed successfully in hybrid development.
Conversion of elite bread wheat cultivars HD3086 and HD2932 into cytoplasmic male sterile (CMS) lines and their genetic assessment to develop CMS-based hybrids
Background Wheat plays a pivotal role in global food and nutritional security. To meet the growing demand for food, increasing wheat production through hybrid development remains an untapped avenue. However, the autogamy of wheat causes a significant challenge for hybrid development. Results The present study aimed to convert the elite bread wheat cultivars HD3086 and HD2932 into a cytoplasmic male-sterile (CMS) lines using the CMS donor parent (A-GW365) through a backcross breeding approach. Background analysis using 152 and 145 SSR markers confirmed ˃95% recovery of recurrent parent genomes (RPG) of the HD3086 and HD2932, respectively. The newly developed CMS lines were evaluated for pollen sterility and phenotypic similarity in comparison to recurrent parents. The cytological study and DUS characterisation of the converted A lines revealed complete sterility and similarity with the recurrent parent for morphological and agronomic traits. Further, two converted A lines, A-HD3086 and A-HD2932 and donor A line A-GW365 were crossed with six newly developed fertility restorer lines (R lines) in a line × tester breeding design. Combining ability analysis revealed positive general combining ability (GCA) for A-HD3086 and 955R across the three trials, and they were identified as the best tester and line, respectively, for grain yield. Furthermore, the genotype × environment interaction analysed through GGE biplot revealed that hybrids G1 (A-HD3086 × 908-3R), G2 (A-HD3086 × 917R), G4 (A-HD3086 × 955R), and G12 (A-GW365 × 1752R) were high-yielding and stable performers. Based on combining ability estimates, grain yield performance, and stability analysis, hybrids G4 (A-HD3086 × 955R) and G12 (A-GW365 × 1752R) were identified as the best-performing hybrids across the environmental trials. Conclusions The present study reported the conversion of agronomically superior cultivars to CMS lines and their practical utilization for the development of CMS-based hybrids.
Deployment of Brassica carinata A. Braun Derived Brassica juncea (L.) Czern. Lines for Improving Heterosis and Water Use Efficiency Under Water Deficit Stress Conditions
Among Brassica species, Ethiopian mustard ( Brassica carinata A. Braun) is known to tolerate most abiotic stresses, including drought. Drought caused by low and erratic rainfall in semi-arid regions consistently challenges rapeseed mustard productivity. Development of B. carinata -derived lines (CDLs) in Brassica juncea (L.) Czern. nuclear background, carrying genomic segments from B. carinata , are expected to tolerate moisture deficit stress conditions. The present study was, thus, aimed to establish the phenomenon “heterosis” for drought tolerance and water use efficiency by evaluating 105 hybrids developed from intermating 15 CDLs in half diallel fashion. Data on 17 seed yield and yield contributing traits were recorded under two different environments, viz ., irrigated and rainfed conditions. Traits under study were found to be governed by both additive and non-additive types of gene action. Average degree of dominance was higher (>2) for yield and yield contributing traits, viz ., secondary branches/plant, point to first siliqua on main shoot, total siliquae/plant, 1,000-seed weight, seed yield/plant, biological yield, harvest index, and seed yield/hectare under rainfed conditions, clearly indicating that higher productivity under drought conditions can be realised through the development of hybrids. Out of 15, highly significant general combining ability (GCA) effects for seven CDLs were observed under rainfed condition. Furthermore, nine and six hybrids expressed highly significant specific combining ability (SCA) effects and > 50% heterobeltiosis for yield contributing traits under rainfed and irrigated conditions, respectively. Water use efficiency (WUE) of parental CDLs and hybrids varied from 2.05 to 2.57 kg m –3 under rainfed, while 1.10 to 1.28 kg m –3 under irrigated conditions. Hybrids expressed higher WUE than parental lines under both water regimes. Furthermore, selection indices such as drought tolerance index (DTI) and mean relative performance (MRP) were identified to be efficient in the selection of productive CDLs and hybrids under drought conditions. Nine hybrids, identified as highly productive in the present study, can further be exploited for improving the yield of Indian mustard in drought-prone areas. Usefulness of interspecific hybridisation in the development of B. carinata -derived B. juncea lines for improving heterosis and WUE is, thus, well demonstrated through the present study.
Lipase domain effector AGLIP1 in Rhizoctonia solani triggers necrotic killing in plants
Key message We highlight the emerging role of the R. solani novel lipase domain effector AGLIP1 in suppressing pattern-triggered immunity and inducing plant cell death. The dynamic interplay between plants and Rhizoctonia solani constitutes a multifaceted struggle for survival and dominance. Within this complex dynamic, R. solani has evolved virulence mechanisms by secreting effectors that disrupt plants’ first line of defense. A newly discovered effector, AGLIP1 in R. solani , plays a pivotal role in inducing plant cell death and subverting immune responses. AGLIP1, a protein containing a signal peptide and a lipase domain, involves complex formation in the intercellular space, followed by translocation to the plant cytoplasm, where it induces cell death (CD) and suppresses defense gene regulation. This study provides valuable insights into the intricate molecular interactions between plants and necrotrophic fungi, underscoring the imperative for further exploration in this field.
Technical Note: Dosimetric evaluation of Monte Carlo algorithm in iPlan for stereotactic ablative body radiotherapy (SABR) for lung cancer patients using RTOG 0813 parameters
For stereotactic ablative body radiotherapy (SABR) in lung cancer patients, Radiation Therapy Oncology Group (RTOG) protocols currently require radiation dose to be calculated using tissue heterogeneity corrections. Dosimetric criteria of RTOG 0813 were established based on the results obtained from non‐Monte Carlo (MC) algorithms, such as superposition/convolutions. Clinically, MC‐based algorithms are now routinely used for lung SABR dose calculations. It is essential to confirm that MC calculations in lung SABR meet RTOG guidelines. This report evaluates iPlan MC plans for SABR in lung cancer patients using dose‐volume histogram normalization per current RTOG 0813 compliance criteria. Eighteen Stage I‐II non‐small cell lung cancer (NSCLC) patients with centrally located tumors, who underwent MC‐based lung SABR with heterogeneity correction using X‐ray Voxel Monte Carlo (XVMC) algorithm (BrainLAB iPlan version 4.1.2), were analyzed. Total dose of 60 Gy in 5 fractions was delivered to planning target volume (PTV) with at least V100%=95%. Internal target volumes (ITVs) were delineated on maximum intensity projection (MIP) images of 4D CT scans. PTV (ITV+5 mm margin) volumes ranged from 10.0 to 99.9 cc (mean=36.8±20.7 cc). Organs at risk (OARs) were delineated on average images of 4D CT scans. Optimal clinical MC SABR plans were generated using a combination of non‐coplanar conformal arcs and beams for the Novalis‐TX consisting of high definition multileaf collimators (MLCs) and 6 MV‐SRS (1000MU/min) mode. All plans were evaluated using the RTOG 0813 high and intermediate dose spillage criteria: conformity index (R100%), ratio of 50% isodose volume to the PTV (R50%), maximum dose 2 cm away from PTV in any direction (D2cm), and percent of normal lung receiving 20 Gy (V20) or more. Other organs‐at‐risk (OARs) doses were tabulated, including the volume of normal lung receiving 5 Gy (V5), maximum cord dose, dose to <15 cc of heart, and dose to <5 cc of esophagus. Only six out of 18 patients met all RTOG 0813 compliance criteria. Eight of 18 patients had minor deviations in R100%, four in R50%, and nine in D2cm. However, only one patient had minor deviation in V20. All other OARs doses, such as maximum cord dose, dose to <15 cc of heart, and dose to <5 cc of esophagus, were satisfactory for RTOG criteria, except for one patient, for whom the dose to <15 cc of heart was higher than RTOG guidelines. The preliminary results for our limited iPlan XVMC dose calculations indicate that the majority (i.e., 2/3) of our patients had minor deviations in the dosimetric guidelines set by RTOG 0813 protocol in one way or another. When using an exclusive highly sophisticated XVMC algorithm, the RTOG 0813 dosimetric compliance criteria such as R100% and D2cm may need to be revisited. Based on our limited number of patient datasets, in general, about 6% for R100% and 9% for D2cm corrections could be applied to pass the RTOG 0813 compliance criteria in most of those patients. More patient plans need to be evaluated to make recommendation for R50%. No adjustment is necessary for OAR dose tolerances, including normal lung V20. In order to establish new MC specific dose parameters, further investigation with a large cohort of patients including central, as well as peripheral lung tumors, is anticipated and strongly recommended. PACS number: 8087
BIOCENOSIS: a novel framework for sustainability assessment of built environment in the Indian context
It is well established that the existing building environmental assessment methods and sustainability assessment methods are intended to foster detailed design stage while there is a need to support early design stages. This research intends to develop a framework that actively supports design development at the formative design stages. The paper reviews the well-established building environmental assessment methods: CASBEE, LEED, BREEAM and GRIHA, and the existing sustainability assessment methods: iiSBE’s Sustainable Building Tool (SB Tool), German Sustainable Building Council’s Certificate Program (DGNB), Living Building Challenge (LBC) and ARUP’s Sustainable Project Assessment Routine SPeAR®. Further, well-known theories of ecological Sustainability are reviewed. The critical points of convergence and divergence of anthropocentric and biocentric approaches are identified to articulate the parameters of sustainability assessment. Specialists in the sustainable built environment assigned weights for assessment parameters (criteria) by applying the analytical hierarchy process (AHP). Their specialist opinions manifest the particular features of the Indian context. The paper delineates the Biocenosis, a novel framework for sustainability assessment of the built environment rooted in the concept of the synergy of nature with social, economic, environmental and cultural benefits for the context of India. It is intended to aid building professionals in the formative design phases as it enables an integrated and comprehensive assessment of the level to which the requirement of a sustainable built environment is satisfied.