Priya Rani - Academia.edu (original) (raw)

Papers by Priya Rani

Journal of Research Updates in Polymer Science

Seeking for green alternatives to synthetic plastics, soy protein based plastics are becoming qui... more Seeking for green alternatives to synthetic plastics, soy protein based plastics are becoming quite a popular choice. Soy protein isolate (SPI) is a plant derived protein that holds fair film forming abilities. It demonstrates evenness of film surface, decent tensile strength and interacts easily with a wide range of additives. Additives are generally added to improve the material properties and antibacterial nature of the film. In this study, we have explored the effect of camphor incorporation on the material properties and overall performance of the film. SPI based films (having 7% SPI (w/v)) were prepared by solution casting method. The concentration of camphor was varied from 0.5 to 3% w/w of 7% SPI. The films prepared by camphor addition were characterized for their transmittance, Fourier Transform Infrared (FTIR) spectroscopy and mechanical properties. The FTIR spectra confirm the incorporation of camphor as a major change in the band intensity was seen compared to neat films...

Studies in health technology and informatics, Jun 29, 2023

In this study, a new method for detecting emotions using Blood Volume Pulse (BVP) signals and mac... more In this study, a new method for detecting emotions using Blood Volume Pulse (BVP) signals and machine learning was presented. The BVP of 30 subjects from the publicly available CASE dataset was pre-processed, and 39 features were extracted from various emotional states, such as amusing, boring, relaxing, and scary. The features were categorized into time, frequency, and time-frequency domains and used to build an emotion detection model with XGBoost. The model achieved the highest classification accuracy of 71.88% using the top 10 features. The most significant features of the model were computed from time (5 features), time-frequency (4 features), and frequency (1 feature) domains. The skewness calculated from the time-frequency representation of the BVP was ranked highest and played a crucial role in the classification. Our study suggests the potential of using BVP recorded from wearable devices to detect emotions in healthcare applications.

Journal of Pharmacy and Bioallied Sciences, 2023

ABSTRACT Introduction: Salivary substitutes are gaining popularity these days because of the incr... more ABSTRACT Introduction: Salivary substitutes are gaining popularity these days because of the increase in patients with dry mouth. These substitutes must satisfy certain criteria to fulfill the patient’s needs. One of these is wettability. Materials and Methods: One hundred fifty rectangular specimens of heat-cured denture base acrylic resin were prepared. A drop of test liquids (human saliva, distilled water, aqwet, saleva, and wet mouth) was placed over the test specimen and right and left contact angles were measured using optical contact angle machine. Results: All test liquids performed better than distilled water. Human saliva has the least contact angle followed by aqwet. Conclusion: Carboxymethyl cellulose base aqwet saliva substitute was found to be best having similar contact angle values to human saliva.

Physical Chemistry Chemical Physics, 2022

The electronic and optical properties of graphene quantum dots (GQDs) can be modified by passivat... more The electronic and optical properties of graphene quantum dots (GQDs) can be modified by passivating them with electronegative group element such fluorine.

Algebra and discrete mathematics, 2022

In this paper, the central and non central codes of semisimple dihedral group algebra F q G, over... more In this paper, the central and non central codes of semisimple dihedral group algebra F q G, over a őnite őeld F q , are constructed. Further the distances of these central and non central codes are computed.

African Journal of Biochemistry Research, Oct 31, 2011

The present study was carried out for identification of the phytochemicals present in the Delonix... more The present study was carried out for identification of the phytochemicals present in the Delonix regia leaves and also evaluates the total phenols, total flavonoids and antioxidant activity of the leaf extract. Total phenols were carried out by Folin Ciocalteu method and the phenolic content was 16.00 mg/100 g of gallic acid equivalent (GE). Antioxidant activity was evaluated by 2,2-Diphenyl-1-Picrylhydrazyl (DPPH) method and the leaves of D. regia showed 10.73 mg/100 g of ascorbic acid equivalent antioxidant capacity (AEAC). The gas chromatograph and mass spectrometer (GC-MS) study was also carried out and it showed the presence of phytochemicals like phytol (RT: 15.49), Cumarin 7, 8dihyddro-7-hydroxy-6-methoxy-8-oxo (RT: 15.92), Squalene (RT: 25.41) and Vitamine (RT: 29.97).

Proceedings of the National Academy of Sciences of the United States of America, Oct 9, 2007

In this article, we provide direct evidence that the evolutionarily conserved transcription elong... more In this article, we provide direct evidence that the evolutionarily conserved transcription elongation factor TFIIS functions during preinitiation complex assembly. First, we identified TFIIS in a mass spectrometric screen of RNA polymerase II (Pol II) preinitiation complexes (PICs). Second, we show that the association of TFIIS with a promoter depends on functional PIC components including Mediator and the SAGA complex. Third, we demonstrate that TFIIS is required for efficient formation of active PICs. Using truncation mutants of TFIIS, we find that the Pol II-binding domain is the minimal domain necessary to stimulate PIC assembly. However, efficient formation of active PICs requires both the Pol II-binding domain and the poorly understood N-terminal domain. Importantly, Domain III, which is required for the elongation function of TFIIS, is dispensable during PIC assembly. The results demonstrate that TFIIS is a PIC component that is required for efficient formation and/or stability of the complex. isotope-coded affinity tagging ͉ quantitative mass spectrometry ͉ Saccharomyces cerevisiae ͉ stable isotopes

Mathematical Notes, Dec 1, 2022

Applied Surface Science, 2023

Physica Scripta, May 22, 2023

In the present work, several efforts have been made theoretically to achieve an excellent non-tox... more In the present work, several efforts have been made theoretically to achieve an excellent non-toxic fluorescent graphene quantum dot (GQD) in the near-infrared region for the application of bio-imaging and sensing. Although the QY of GQDs is a maximum of 98.5% in the visible region, it is still very low, and it is as low as 7% in NIR. Sulfur and its group elements have been used for doping because they are pretty cheap and nontoxic and hence suitable for this application. The surface-doped position is considered for studying their effect on the energy band gap, absorption and fluorescence properties. The HOMO and LUMO isosurfaces have been analyzed in order to comprehend the nature of the dominant transition taking place in absorption spectra. Additionally, the quantitative indices, transition density matrix contour maps, and charge difference density have all been examined in order to determine whether this particular transition is locally excited or involves charge transfer. Following this, the QY of each GQD has been determined by considering the fluorescence spectra. The wavelength of fluorescence of doped GQDs is found to be in the region of 800–1400 nm, i.e. in NIR, which is strongly desirable for bio-imaging and bio-sensing applications. With a fluorescence of ∼850 nm, sulfur-doped GQDs (S-GQD: C52S2H18) have the greatest QY, 26%, which is larger than the 7% achieved earlier in NIR and such a high QY in NIR is being reported for the first time.

Materials Today: Proceedings, Apr 1, 2023

Cell, Jun 1, 2015

Highlights d DPC4 dosage regulates RUNX3 levels in a biphasic manner d RUNX3 controls the balance... more Highlights d DPC4 dosage regulates RUNX3 levels in a biphasic manner d RUNX3 controls the balance between local growth and dissemination in PDA d RUNX3 functions as both tumor suppressor and tumor promoter in PDA d DPC4 and RUNX3 levels can jointly inform clinical decision making

International journal of current research and review, 2022

the body. The presence of a normal physiological level of Vitamin D in the body is highly advanta... more the body. The presence of a normal physiological level of Vitamin D in the body is highly advantageous in the protection of the body against RTIs. 3 Administration of Vitamin D in infants can greatly decrease the number of visits to health care setups for acute RTIs in children. This inference was given by Grant et al. in New Zealand. 4 However, according to some studies, Vitamin D has no role in the prevention of RTIs in children. Nonetheless, the supplements of Vitamin D have been seen as beneficial in children with asthma. 5 Some studies also suggest

Authorea (Authorea), Jul 3, 2023

The goal of modern dentistry is to restore optimum oral health, function and comfort for a patien... more The goal of modern dentistry is to restore optimum oral health, function and comfort for a patient. For an implant supported fixed prosthesis, these goals cannot be met if the biomechanical factors governing the success of the prosthesis are overlooked. Mandibular flexure is one such factor which needs to be considered, especially when implants are being placed posterior to the interforaminal region. If not, it can lead to problems like increased stress, bone resorption, poor fit of the prosthesis, screw loosening, patient discomfort etc. The use of split-framework prosthesis is one of the measures that could be taken to decrease the stress, ensure a passive fit of framework and long term maintenance of patient comfort and function. This case report describes oral rehabilitation of a patient using maxillary cast partial denture and mandibular split framework fixed prosthesis to compensate for mandibular flexure.

Nucleation and Atmospheric Aerosols, 2022

The professional medical journal, Jun 10, 2020

The objective of this study is to evaluate the prevalence and severity of TMJD and distribution o... more The objective of this study is to evaluate the prevalence and severity of TMJD and distribution of associated symptoms with respect to gender and age among the patients visiting Dental Clinic of a Rural Health Centre (RHC). Study Design: Descriptive crosssectional study.

Molecular and Cellular Biology, Feb 15, 2004

Protein purification and depletion studies were used to determine the major stable forms of RNA p... more Protein purification and depletion studies were used to determine the major stable forms of RNA polymerase II (Pol II) complexes found in Saccharomyces cerevisiae nuclear extracts. About 50% of Pol II is found associated with the general transcription factor TFIIF (Pol II-TFIIF), and about 20% of Pol II is associated with Mediator (Pol-Med). No Pol II-Med-TFIIF complex was observed. The activity of Pol II and the purified Pol II complexes in transcription initiation and reinitiation was investigated by supplementing extracts depleted of either total Pol II or total TFIIF with purified Pol II or the Pol II complexes. We found that all three forms of Pol II can complement Pol II-depleted extracts for transcription initiation, but Pol II-TFIIF has the highest specific activity. Similarly, Pol II-TFIIF has a much higher specific activity than TFIIF for complementation of TFIIF transcription activity. Although the Pol II-TFIIF and Pol II-Med complexes were stable when purified, we found these complexes were dynamic in extracts under transcription conditions, with a single polymerase capable of exchanging bound Mediator and TFIIF. Using a purified system to examine transcription reinitiation, we found that Pol II-TFIIF was active in promoting multiple rounds of transcription while Pol II-Med was nearly inactive. These results suggest that both the Pol II-Med and Pol II-TFIIF complexes can be recruited for transcription initiation but that only the Pol II-TFIIF complex is competent for transcription reinitiation.

Diabetes-related Foot Ulcers (DFUs) and Venous Leg Ulcers (VLUs) are two important types of chron... more Diabetes-related Foot Ulcers (DFUs) and Venous Leg Ulcers (VLUs) are two important types of chronic wounds which do not heal in an orderly fashion and being a major cause of morbidity in extreme cases. Assessment of these ulcers is a growing concern among