5,258 results match your criteria: "Homi Bhabha National Institute[Affiliation]"

Radiological considerations in using uranium mine waste rock for road construction materials.

J Environ Radioact

January 2025

Health Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.

India's road construction is vital for its infrastructure growth, requiring approximately 20,000 tons of high-quality aggregates per kilometer - materials that are increasingly scarce, leading to higher costs and delays. The industrial sector, a cornerstone of the Indian economy, also struggles with waste management. Earlier studies suggested that industrial waste can be used in road construction materials however, the radiological considerations were not focused.

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Topological magnetic skyrmions with helicity state degrees of freedom in centrosymmetric magnets possess great potential for advanced spintronics applications and quantum computing. Till date, the skyrmion study in this class of materials mostly remains focused to collinear ferromagnets with uniaxial magnetic anisotropy. Here, we present a combined theoretical and experimental study on the competing magnetic exchange-induced evolution of noncollinear magnetic ground states and its impact on the skyrmion formation in a series of centrosymmetric hexagonal noncollinear magnets, MnFeCoGe.

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Radiation Safety Assessment of 177Lu-DOTATATE Intra-arterial Peptide Receptor Therapy (PRRT).

Indian J Nucl Med

November 2024

Department of Nuclear Medicine and Molecular Imaging, Advanced Centre for Treatment Research and Education in Cancer, Tata Memorial Centre, Mumbai, Maharashtra, India.

Objective: Lu-DOTATATE peptide receptor therapy (PRRT) is an established treatment for patients suffering from neuroendocrine tumors. In the last few years, intra-arterial PRRT is being considered for patients having liver metastatic disease predominantly. The aim of our study is to measure the radiation doses received by the treating intervention radiologists involved in intra-arterial PRRT treatment using Lu-DOTATATE.

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Optimizing Low-Dose [18F]FDG-PET/CT Scans: Ensuring Quality Amid Radiotracer Availability Challenges - Insights from a Peripheral Tertiary Care Center.

Indian J Nucl Med

November 2024

Department of Nuclear Medicine and Molecular Imaging, Homi Bhabha Cancer Hospital & Mahamana Pandit Madan Mohan Malaviya Cancer Centre, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Varanasi, India.

Background: The introduction of positron emission tomography/computed tomography (PET/CT) has significantly advanced medical imaging. In oncology, F-fluorodeoxyglucose (F-FDG) PET/CT is particularly crucial for staging, evaluating treatment response, monitoring follow-up, and planning radiotherapy. However, in resource limiting hospitals, the availability of fluorine-labeled F-FDG limits optimal scan acquisition.

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Necrotizing fasciitis is a deadly yet rare soft tissue and skin infection that is usually diagnosed clinically. At times, clinical signs may betray the underlying etiology and masquerade as cellulitis in the early course of the disease. We report four cases with clinical suspicion of necrotizing fasciitis, some after the failure of therapy for cellulitis who underwent 18-F fluorodeoxyglucose positron emission tomography-computed tomography (18-F FDG PET/CT) showing the extent of the disease, showing subclinical sites of involvement in patients with necrotizing fasciitis on baseline scan as well as its role in assessing response to treatment using 18-F FDG PET/CT.

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GFR Estimation and Correlation for Oncology Patients by Two Methods, Gates Method and Dual Time Point Plasma Sampling Method.

Indian J Nucl Med

November 2024

Department of Nuclear Medicine and Molecular Imaging, Homi Bhabha Cancer Hospital and Mahamana Pandit Madan Mohan Malaviya Cancer Centre, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Varanasi, India.

Background: With the increasing number of oncology cases and a parallel surge in chemotherapeutic drugs for treatment, the treating physicians conducts nephrotoxicity evaluation to provide a personalized dosing strategy. Of the various tests available, glomerular filtration rate (GFR) under gamma camera with help of Gates method has gained importance, being a good index of overall kidney functions. In addition to this, there has been an alternate and old method for GFR estimation: plasma sampling.

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Time-efficient HPLC Validation Methodology for the Qualitative Analysis of 68Ga PSMA-11 in Routine Clinical Usage under Isocratic Method.

Indian J Nucl Med

November 2024

Department of Nuclear Medicine and Molecular Imaging, Homi Bhabha Cancer Hospital and Mahamana Pandit Madan Mohan Malaviya Cancer Centre, Tata Memorial Centre, Homi Bhabha National Institute, Varanasi, Uttar Pradesh, India.

Background: Prostate-specific membrane antigen (PSMA) has shown to be a promising agent for prostate cancer imaging under PET-CT. With the automation in radiolabeling with 68Ga, using iTG 68Ge/68Ga generator, it has helped introduce various new diagnostic agents and achieve good manufacturing practices (GMP) simultaneously. However, before any radiopharmaceutical is put into clinical usage, it should always be checked for its radiochemical purity and other quality parameters before injecting in the patient.

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Inward rectifying potassium (Kir) channels play a critical role in maintaining the resting membrane potential and cellular homeostasis. The high-resolution crystal structure of homotetrameric KirBac1.1 in detergent micelles provides a snapshot of the closed state.

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Introduction of non-DLVO forces by nonionic surfactants brings about fascinating changes in the phase behavior of silica nanosuspensions. We show here that alterations in the interaction and wetting properties of negatively charged silica nanoparticles (Ludox® LS) in the presence of polyethylene oxide-polypropylene oxide-polyethylene oxide-based triblock copolymers called Pluronics lead to the formation of stable o/w Pickering emulsions and interparticle attraction-induced thermoresponsive liquid-liquid phase separations. The results make interesting comparisons with those reported for Ludox® TM nanosuspensions comprising larger silica nanoparticles.

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Thermocontrolled Radical Nucleophilicity vs Radicophilicity in Regiodivergent C-H Functionalization.

Org Lett

January 2025

School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India.

The temperature-dependent switching behavior of the saccharin radical is demonstrated, enabling the regiodivergent C-H and C-H functionalization of quinoxalin-2(1)-ones. The saccharin radical was generated through N-Br bond cleavage in -bromosaccharin (NBSA) and was observed to transition between radical and radicophile roles. At -10 °C, it was utilized as a radicophile, resulting in 100% C-amination, while at +35 °C, it acted as a radical, leading to exclusive C-bromination.

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Thermogravimetry coupled with simultaneous evolved gas analysis by mass spectrometry was used for discerning organic compounds released during the thermal degradation of paint whose chemical compositions are not readily accessible. Thermogravimetric analyses up to 600°C revealed distinct degradation patterns under inert and oxidative conditions. Significant degradation of paint initiates at around 360°C and concludes at 500°C in a nitrogen atmosphere.

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BharatSim is an open-source agent-based modelling framework for the Indian population. It can simulate populations at multiple scales, from small communities to states. BharatSim uses a synthetic population created by applying statistical methods and machine learning algorithms to survey data from multiple sources, including the Census of India, the India Human Development Survey, the National Sample Survey, and the Gridded Population of the World.

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In this study, we measured human epidermal growth factor receptor (EGFR) mutations in both tissue and circulating tumor DNA (ctDNA) by using beads, emulsions, amplifications and magnetic polymerase chain reaction (BEAMing PCR). Noninvasive mutation detection by assessing circulating tumor DNA (ctDNA) offers many advantages over tumor biopsy. One hundred non-small cell lung cancer (NSCLC) patients were enrolled, and both preoperative plasma samples and formalin-fixed and paraffin-embedded (FFPE) samples were collected for the study.

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Free radicals have been implicated in the pathogenesis of cancer along with cardiovascular, neurodegenerative, pulmonary and inflammatory disorders. Further, the relationship between oxidative stress and disease is distinctively established. Clinical trials using anti-oxidants for the prevention of disease progression have indicated some beneficial effects.

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Unveiling the Dissociation Mechanism of Diglycine Perchlorate.

Inorg Chem

January 2025

High Pressure & Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai, Trombay 400085, India.

Determining the dissociation mechanism of perchlorate materials remains a top priority to address sustainability, handling, processing, and synthesis issues of new and existing high-energy density materials vital to many industrial processes. We determined the dissociation mechanism of diglycine perchlorate (DGPCl) using vibrational spectroscopy, which unveiled the formation of ammonium perchlorate (AP) and carbon at high temperatures. Our studies establish that DGPCl shows multiple phase transitions upon heating.

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Polydimethylsiloxane loaded capsaicin afflicts membrane integrity, metabolic activity and biofilm formation of nosocomial pathogens.

Microb Pathog

January 2025

Biofouling and Biofilm Processes Section, Water and Steam Chemistry Division, Bhabha Atomic Research Centre Facilities, Kalpakkam, 603 102, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India. Electronic address:

Biofilms constitute 80 % of all nosocomial infections associated with invasive medical devices. Polydimethylsiloxane, a highly elastic, inert, non-reactive, biocompatible silicone polymer is widely used as implant biomaterial due to its non-toxic and low-immunogenic nature. Owing to its hydrophobicity, PDMS suffers from microbial adhesion.

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Objectives: Randomized clinical trials informing clinical practice (e.g., like large, pragmatic, and late-phase trials) should ideally mostly use harmonized outcomes that are important to patients, family members, clinicians, and researchers.

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Cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS-HIPEC) has become standard treatment for peritoneal cancers and metastases, significantly enhancing survival rates. This study evaluated the relationship between tumor burden, hemodynamic management, and postoperative outcomes after CRS-HIPEC. This study included 203 patients undergoing CRS-HIPEC.

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Is SOLUTE the Solution to Which Solution (to Use)?

Indian J Crit Care Med

December 2024

Department of Anaesthesiology, SMBT Institute of Medical Sciences and Research Center, Nashik, Maharashtra, India.

Article Synopsis
  • The article discusses the importance of selecting the right intravenous fluids (solutions) in critical care settings.
  • It evaluates the role of different types of solute solutions in patient management and their potential impacts on outcomes.
  • The authors emphasize the need for evidence-based guidelines to help healthcare professionals choose appropriate solutions for various clinical scenarios.
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Challenges in the Management of Hemorrhagic Shock in Patients with Bombay Blood Group in the ICU: What the H?

Indian J Crit Care Med

December 2024

Department of Anaesthesia, Division of Critical Care Medicine, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, Maharashtra, India.

Bhosale SJ, Joshi M, Dhakane P, Ojha S, Kulkarni AP. Challenges in the Management of Hemorrhagic Shock in Patients with Bombay Blood Group in the ICU: What the H? Indian J Crit Care Med 2024;28(12):1185-1186.

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Background And Aims: For the aggressive treatment of postoperative pain, nonpharmacological methods (NPMs) are gaining importance complementary to routine multimodal pain management. The primary aim of the study was to assess the incidence of use of NPMs in our hospital. Secondary objectives were to correlate the pain scores, patient satisfaction, and percentage of time the patient was in severe pain within 72 h postsurgery with the use of NPMs when in pain/not in pain.

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Aim: To evaluate the efficacy of 25Gy/5# prophylactic pelvic nodal irradiation for regional control during stereotactic radiotherapy (SBRT) for high risk prostate cancer.

Methods: The multinational XXXX consortium database of patients treated with curative-intent prostate SBRT for high risk prostate cancer was queried for prophylactic radiotherapy 25Gy/5# to the pelvic lymph nodes. Details of Phoenix-defined biochemical failure, and location of recurrence (local, regional, or distant) were extracted.

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