Publications by authors named "Anup Kumar Das"

Patients diagnosed with cancer post-treatment are prone to have recurrent disease. Regular follow-up of these patients enables early recognition and treatment. A tissue diagnosis before starting treatment is imperative to avoid misdiagnosis and management.

View Article and Find Full Text PDF

The retrieval of the biophysical parameters and subsequent estimation of the above-ground biomass (AGB) of vegetation stands are made possible by the simulation of the extinction and scattering components from the canopy layer using vector radiative transfer (VRT) theory-based scattering models. With the use of such a model, this study aims to evaluate and compare the potential of dual-pol, multi-frequency SAR data for estimating above-ground biomass. The data selected for this work are L-band dual polarized (HH/HV) ALOS-2 data, S-band dual polarized (HH/HV) NovaSAR data, and C-band dual polarized (VV/VH) Sentinel-1 data.

View Article and Find Full Text PDF

The ornamental crop industry is an important contributor to the economy in the United States. The industry has been facing challenges due to continuously increasing labor and agricultural input costs. Sensing and automation technologies have been introduced to reduce labor requirements and to ensure efficient management operations.

View Article and Find Full Text PDF

The evaluation of crop research institutes in the developing world under limited data availability has not been assessed in the past due to resource constraints. The paper assesses the social benefits of rice research taking the case of a research institute from India following a new approach. The area coverage of the varieties was estimated to be 3.

View Article and Find Full Text PDF

Anthropogenic activity is a major driving factor of greenhouse gas emission, leading to climate change worldwide. So, the best natural approach to lowering the carbon from the atmosphere is mangroves which have more potential to sequestrate carbon. But mangroves are under threat due to land use land cover change.

View Article and Find Full Text PDF
Article Synopsis
  • Identifying unknown palaeo-channels in the Thar Desert is important for finding aquifers and valuable mineral deposits.
  • The study used Sentinel-1A and Sentinel-2A satellite data to visually inspect and confirm the existence of these channels through imagery and topographic analysis.
  • Results showed that post-monsoon data is more effective in pinpointing palaeo-channels due to increased moisture visibility, leading to the discovery of previously unmapped features.
View Article and Find Full Text PDF

Objective: To assess the level, pattern and determinants of minimum acceptable diet (MAD) feeding in Odisha, India.

Design: Utilising cross-sectional data, the MAD was estimated through a dietary assessment method wherein the child's mother was asked to recall all the food intake of the youngest child the previous day and night of the surveyed date.

Setting: National Family Health Survey 2015-2016.

View Article and Find Full Text PDF

Fine needle aspiration cytology (FNAC) entails using a narrow gauge (25-22 G) needle to collect a sample of a lesion for microscopic examination. It allows a minimally invasive, rapid diagnosis of tissue but does not preserve its histological architecture. FNAC is commonly used for diagnosis of breast cancer, with traditional practice being based on the subjective visual assessment of the breast cytopathology cell samples under a microscope to evaluate the state of various cytological features.

View Article and Find Full Text PDF

Purpose/aim: Diabetes mellitus is associated with several comorbid conditions. Thus, often, diabetic patients are prescribed multiple drugs. Although multiple drugs help to combat various diseases, they also increase the propensity of drug interactions and adverse drug reactions.

View Article and Find Full Text PDF

Diabetic neuropathy is regarded as one of the most debilitating outcomes of diabetes mellitus and may cause pain, decreased motility, and even amputation. Diabetic neuropathy includes multiple forms, ranging from discomfort to death. Prognosis of diabetic neuropathy is an uphill task as it remains silent for several years after the onset of diabetes.

View Article and Find Full Text PDF

Head and neck squamous cell carcinoma is the most commonly diagnosed cancer worldwide. The lifestyle, food habits, and customary practices manifest the Northeast Indian population toward higher susceptibility to develop head and neck squamous cell carcinoma. Here, we have investigated the association of smoke and smokeless tobacco, and alcohol with copy number variation of cell-free mitochondrial DNA and cell-free nuclear DNA in cases and controls.

View Article and Find Full Text PDF

Background And Objectives: The present study proposes an intelligent system for automatic categorization of Pap smear images to detect cervical dysplasia, which has been an open problem ongoing for last five decades.

Methods: The classification technique is based on shape, texture and color features. It classifies the cervical dysplasia into two-level (normal and abnormal) and three-level (Negative for Intraepithelial Lesion or Malignancy, Low-grade Squamous Intraepithelial Lesion and High-grade Squamous Intraepithelial Lesion) classes reflecting the established Bethesda system of classification used for diagnosis of cancerous or precancerous lesion of cervix.

View Article and Find Full Text PDF

Background: is a salt-tolerant true mangrove which is widely distributed in Indian mangrove forest and traditionally used to treat diabetes and other health ailments.

Aim: The aim of this study is to elucidate the role of Indian variety of leaves on glucose impairing metabolism during diabetes by and methods.

Materials And Methods: The ethanolic fraction of leaves extract (RHE) was assessed for DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging and anti-diabetic action through α-amylase and α-glucosidase activity assessment.

View Article and Find Full Text PDF

Objectives: The objective was to assess the views of clinicians in teaching hospitals of Kolkata regarding the use of antibiotics in their own hospitals, focusing on perceived misuse, reasons behind such misuse and feasible remedial measures.

Materials And Methods: A total of 200 clinicians from core clinical disciplines was approached in six teaching hospitals of Kolkata through purposive sampling. A structured, validated questionnaire adopted from published studies and modified to suit the responding population was completed by consenting respondents through face-to-face interaction with a single interviewer.

View Article and Find Full Text PDF

Objective: To examine the frequency of proper use of inhalation devices and influence of age and training on it.

Materials And Methods: One hundred and five subjects of bronchial asthma and Chronic Obstructive Pulmonary Disease (COPD); aged between 18 to 75 y (mean ± SD; 46 ± 28.55) were studied.

View Article and Find Full Text PDF

Objectives: Toxicity of cancer chemotherapy may be affected by nutritional status of patients which is reflected in the body mass index (BMI). We sought to assess whether the adverse drug reaction (ADR) profile of platinum-based chemotherapy varies with BMI status.

Materials And Methods: Adult patients of either sex, suffering from a solid tumor (lung, head and neck, ovary, gall bladder, stomach, colon) and started on platinum-based chemotherapy as initial treatment were included.

View Article and Find Full Text PDF

Introduction: Extraction forms the very basic step in research on natural products for drug discovery. A poorly optimised and planned extraction methodology can jeopardise the entire mission.

Objective: To provide a vivid picture of different chemometric tools and planning for process optimisation and method development in extraction of botanical material, with emphasis on microwave-assisted extraction (MAE) of botanical material.

View Article and Find Full Text PDF

Learning environment in any medical college is found to be important in determining student's academic success. The study was undertaken to know and compare the perceptions of educational environment of undergraduate and postgraduate medical students, find out the problem areas and their remedies at Calcutta National Medical College and Hospital, Kolkata. In the present study, Dundee Ready Education Environment Measure (DREEM) questionnaire was administered to undergraduate (n = 278) and postgraduate (n = 43) student and the scores were compared using a non-parametric test.

View Article and Find Full Text PDF

Introduction: Triterpenoids are a group of important phytocomponents from Ficus racemosa (syn. Ficus glomerata Roxb.) that are known to possess diverse pharmacological activities and which have prompted the development of various extraction techniques and strategies for its better utilisation.

View Article and Find Full Text PDF

The study was conducted to evaluate the efficacy and safety of flupirtine maleate 100 mg thrice daily compared to tramadol hydrochloride 50 mg thrice daily as postoperative pain management for 5 days. A total of 113 postoperative patients were recruited for the study. Those who met the inclusion criteria (n = 104) were randomised into two treatment groups.

View Article and Find Full Text PDF

Cutaneous tuberculosis shows wide clinical variation depending upon the virulence of the organism and host immunity. Tuberculids are difficult to diagnose since the organism often cannot be identified or isolated by microscopy, culture or polymerase chain reaction. The diagnosis rests primarily on the identification of a tuberculous focus elsewhere in the body and response to antitubercular therapy.

View Article and Find Full Text PDF

Insulinoma is a very rare pancreatic neoplasm of childhood. Early recognition of insulinoma is important to ensure proper surgical treatment and prevent serious adverse neurological consequences. We describe here a case of insulinoma in an infant who presented with seizures and abnormal behaviour.

View Article and Find Full Text PDF

Paragangliomas of the urinary bladder are rare tumors representing less than 1% of bladder tumors and are usually benign. Malignant paragangliomas are uncommon and are defined by their clinical behavior rather than the histologic features. We describe a patient with recurrent nonfunctioning paraganglioma of bladder presenting with hematuria and obstructive uropathy due to involvement of ureteroileal anastomoses.

View Article and Find Full Text PDF