Papers by Shreya Vinaykumar Mishra
Critical Care Medicine
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American Journal of Orthodontics and Dentofacial Orthopedics
OBJECTIVE The aim of this study was to measure the dimensions of the select facial muscles and co... more OBJECTIVE The aim of this study was to measure the dimensions of the select facial muscles and correlate them with different types of smiles. METHODS The study group included 30 South Asian adults (17 men and 13 women) aged between 24 and 30 years divided into 3 groups of 10 subjects each according to Rubin's classification of smile. The zygomaticus major, levator labii superioris, depressor anguli oris, and mentalis muscles were ultrasonographically evaluated. The length and thickness of the muscles were measured bilaterally. The data obtained were analyzed statistically. RESULTS The maximum mean value thickness of the zygomaticus major was found in the canine smile group. The maximum mean value thickness of the depressor anguli oris and mentalis was seen in the full denture smile group. However, the thickness of the levator labii superioris muscle was similar between the different smile groups. There was no significant difference in the measurements of the length of the muscles between the right and the left sides. CONCLUSIONS This study did not find any statistically significant correlation between the type of smiles described in Rubin's classification and the dimensions of the associated facial muscle.
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BMJ Case Reports
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IP Indian Journal of Orthodontics and Dentofacial Research, 2021
The term “asymmetry” is used to make reference to dissimilarity between homologous elements, alte... more The term “asymmetry” is used to make reference to dissimilarity between homologous elements, altering the balance between the structures. Facial asymmetry is common in the overall population and is often presented subclinically. The assessment of facial asymmetry includes the interview of the patient with the orthodontist, extra-oral and intra-oral clinical examination. Depending upon the careful diagnosis the treatment options are selected from asymmetrical orthodontic mechanics to orthodontic surgery, depending upon the patient’s age, primary etiology of disease. When the amount of asymmetry is significant, the problem is usually visible, which has a detrimental impact on one's facial and smile aesthetics. Facial asymmetry in the craniofacial complex ranges from barely discernible to obvious differences between the right and left half of the face.
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Journal of the American College of Cardiology, 2021
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Lecture Notes in Networks and Systems, 2021
At the examination center, examinees daily face difficulties in finding their seating position th... more At the examination center, examinees daily face difficulties in finding their seating position that consumes a lot of time. Also in COVID-19 pandemic, we need to maintain social distancing while taking examination offline. So, this paper proposes system that can help examinees in knowing their seat number in their respective examination hall with the help of online Web portal. It can help in eliminating the crowd at the notice board and can also save their time. With the help of an admit card generated to which a barcode be attached, an examinee can scan that code each day and know their seating location as per a daily basis. Another system is also proposed for face recognition that can help the examiner in identifying the identity of candidates that can also alert them if they are not found in the database using deep learning. Within the examination hall, the orientation of the head and movement of the mouth of an examinee provide us the clue of suspicious behaviors. Nowadays, most of the suspicious behaviors monitoring procedures are done manually that involves a lot of invigilators in each examination hall. In the pandemic situation, we proposed an intelligent invigilation using video surveillance that can autonomously detect and track examinee’s eye gaze, head orientation, and mouth movement to robustly detect their cheating activities. Algorithms which are implemented independently include eigen-face, fisherface, and linear binary pattern histograms. With the help of webcam installed at each examinee’s desk, if any suspicious activity is detected, the system will generate an alarm indicating such behaviors. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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The skin properties like skin dryness, fungus and allergic symptoms of skin layer may led to star... more The skin properties like skin dryness, fungus and allergic symptoms of skin layer may led to starting symptoms of malignant melanoma skin cancer. The correct identification of skin spots based on certain features is the key steps in detecting the skin cancer disease in advance. The affected skin texture profile correlation with malignant melanoma skin cancer is discussed in the proposed in this work. In the existing scenario, the skin images are analyzed in frequency domain. The skin color in texture images does not vary over a wide range. Therefore, the histogram profile of the skin texture remains almost flat. We have shifted the skin texture analysis towards the gray level profile analysis. The gray color profile of the skin texture may give fair idea about the skin sensitivity and is a new emerging skin texture analysis tool. In the proposed work, skin gray color profile has been taken as the input parameter in order to ascertain the skin profile. A support vector machine (SVM) ...
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Question answering (QA) is one of the oldest research areas of AI and Computational Linguistics. ... more Question answering (QA) is one of the oldest research areas of AI and Computational Linguistics. QA has seen significant progress with the development of state-of-the-art models and benchmark datasets over the last few years. However, pre-trained QA models perform poorly for clinical QA tasks, presumably due to the complexity of electronic healthcare data. With the digitization of healthcare data and the increasing volume of unstructured data, it is extremely important for healthcare providers to have a mechanism to query the data to find appropriate answers. Since diagnosis is central to any decision-making for the clinicians and patients, we have created a pipeline to develop diagnosis-specific QA datasets and curated a QA database for the Cerebrovascular Accident (CVA). CVA, also commonly known as Stroke, is an important and commonly occurring diagnosis amongst critically ill patients. Our method when compared to clinician validation achieved an accuracy of 0.90(with 90% CI [0.82...
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IP Indian Journal of Orthodontics and Dentofacial Research, 2021
The Temporomandibular joint is an atypical synovial joint that is dynamic in structure. A delicat... more The Temporomandibular joint is an atypical synovial joint that is dynamic in structure. A delicate balance between the musculature, the condylar cartilage and the bony structures is maintained for harmonious functioning of the joint. Over the years the role of occlusion in temporomandibular disorders (TMD) has been extensively debated, leading to many opinions and much controversy. The changes in the joint caused in response to orthodontic therapy as well the adverse reactions caused have been studied. The present article is a review on the effects of Orthodontic appliance therapy on the joint and the present modalities opted to treat the joint disorders.
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2021 International Conference on Advance Computing and Innovative Technologies in Engineering (ICACITE), 2021
A facial expression is like a gesture which is executed with the facial muscles, and it conveys t... more A facial expression is like a gesture which is executed with the facial muscles, and it conveys the emotional state of the subject to the observer. As technology is progressing it is important for the robots to understand human emotions for better communication. We investigate the field of facial expression recognition with deep learning by using Convolutional Neural Network (CNN) algorithm. The proposed framework is trained with FER2013 dataset and tested in real time. Several pooling layers are used in the training part for extracting the features out of the images and haarcascade classifier is used to identify the presence of face in the frame. Our system can recognize five universal emotions of the Facial Action Coding System (FACS) i.e., happy, sad, neutral, surprise and angry which can be identified by the face of a person. It can detect the expressions of multiple faces at the same time. The training accuracy obtained by the system is 73.12%. The real time experiment showed an excellent result.
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Palaeogeography, Palaeoclimatology, Palaeoecology, 2021
Abstract The Permian–Triassic Mass Extinction (PTME) event was the largest bio crisis to date, ad... more Abstract The Permian–Triassic Mass Extinction (PTME) event was the largest bio crisis to date, adversely affecting life on land and sea. The PTME event is evidenced in India by the destruction of glossopterids with immense loss of peat-forming vegetation, its replacement by stress-tolerant lycopsids, Lilliput Effect and the presence of numerous acritarchs and abnormal pollen grains. However, there are no reports for algal or acritarch spikes. We document, for the first time, an acritarch spike in the Indian subcontinent from the uppermost Permian to Lower Triassic sequence from the Pranhita–Godavari (P-G) Basin. Lithostratigraphically, the late Permian and Early Triassic aged deposits in the P-G basin are designated as the Kamthi Formation. The formation has a very rich and diverse assemblage of pollen grains, spores and acritarchs. Based on a palynological study, an abundance of Leiosphaeridia dessicata comb. nov. emend. has been identified from sediment samples from the two bore cores (MCP-7 and MCP-8) of the Chintalapudi sub-basin, P-G basin. The acritarch appearance and abundance occurred in synchronization with the floral shift. The acritarch appears along with the stress-tolerant lycopsid spores in the uppermost Permian assemblage and increases in accordance with lycopsid spores in the Lower Triassic assemblages. The morphology of Leiosphaeridia dessicata comb. nov. emend. relates its close affinity with an extant marine algal cyst of Acetabularia acetabulum. Moreover, the presence of gammacerane and methylate chromans in the host sediment indicates the hypersaline water column during the deposition. Thus, based on the presence of marine and hypersaline biomarkers and affinity of L. dessicata comb. nov. emend. with marine alga (probably Prasinophyceae or Chlorophyceae) infer that the deposition during the uppermost Permian and Lower Triassic occurred under shallow marine conditions, contradictory to the earlier belief that Indian Upper Permian and Triassic deposits are entirely terrestrial. The possible marine incursion in the P-G basin may have occurred from the eastern continental margin along western Australia or through a passage between the Indian southern margin and the west margin of Antarctica.
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Palaeobiodiversity and Palaeoenvironments, 2017
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Palaeogeography, Palaeoclimatology, Palaeoecology, 2019
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International Journal of Coal Geology, 2018
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Journal of Asian Earth Sciences, 2018
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Journal of the American College of Cardiology, 2018
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Journal of the American College of Cardiology, 2019
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Revue de Micropaléontologie, 2017
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Papers by Shreya Vinaykumar Mishra