167 research outputs found
Effect of salivary contamination on shear bond strength of two adhesives: An in vitro study
No full textIntroduction: Composite material used with bonding system are technique sensitive and contamination of an etched surface by saliva or blood plays a key role in bonding efficacy. Achieving good moisture control is a common problem encountered and is of importance while treating a pediatric age group since rubber dam in dental office is commonly applied in fewer than 10% of restorative treatment. Despite the advantage of rubber dam application, usage of rubber dam depends on child′s behavior and its level of co-operation for which pediatric dentists compromise with its usage. This study was conducted to evaluate the effect of salivary contamination of enamel and dentin on bond strength of two adhesives. Materials and Methods: An in vitro study comprised of test group of 112 central incisors divided into 4 groups for testing on enamel and dentin separately. These are Group I: Control group without salivary contamination; Group II: Contaminated with saliva and air-dried; Group III: Contaminated with saliva, rinsed and air-dried; Group IV: Coated with adhesive, light cured and then contaminated. Shear bond strength was calculated using universal testing machine. Results: For testing on enamel and dentin, significantly decreased bond strength was seen with Group II (P 0.05), when compared with control Group I. Conclusion: The decontamination method used in this study by rinsing the contaminated cured adhesive layer that did not reverse the harmful effect of salivary contamination. As most of the children are active and restless with swinging mood, it is important not to negotiate with the procedural steps during treatment
Advancements in Automated Image Captioning: A Comparative Study of Modern AI Models
No full textThe study presents a comprehensive study of full-sentence caption generation methods covering the overlap between visual content and natural language processing. Focused on Flickr dataset, study aims to explore recent approaches and compare 3 advanced methodologies including the combination of VGG-16 with LSTM, Vision Transformer (ViT) with GPT-2 and OpenAI’s Contrastive Language–Image Pretraining (CLIP). Each approach is evaluated for its effectiveness in producing coherent and contextually relevant captions using BLEU-1 and BLEU-2 scores serving as the primary evaluation metrics and human evaluation. Additionally project briefly further studies potential NLP applications including trending generation, word based image search, translation and audio conversion. Eventually, this project aims to contribute this this latest evolving field of auto caption generation showcasing the capability and limitations of current approaches for future advancements in integrating visual and linguistic data processing and exploring potential use cases for these captions generated
Algorithms and techniques for transitioning to software defined networks
No full textSoftware Defined Networking (SDN) has seen growing deployment in the large wired data center networks due to its advantages like better network manageability and higher-level abstractions. At the core of SDN is the separation and centralization of the control plane from the forwarding elements in the network as opposed to the distributed control plane of current networks. However various issues need to be addressed for an efficient transition to SDN from existing legacy networks. In this thesis, we address following three important challenges in this regard. (1) The task of deploying the distributed controllers
continues to be performed in a manual and static way. To address this problem, we present
a novel approach called InitSDN to bootstrapping the distributed software defined network
architecture and deploying the distributed controllers. (2) Data center networks (DCNs)
rely heavily on the use of group communications for various tasks such as management utilities, collaborative applications, distributed databases, etc. SDN provides new opportunities for re-engineering multicast protocols that can address current limitations with IP multicast. To that end we present a novel approach to using SDN-based multicast (SDMC) for flexible, network load-aware, and switch memory-efficient group communication in
DCNs. (3) SDN has been slow to be used in the wireless scenario like wireless mesh net-
works (WSN) compared to wired data center networks. This is due to the fact that SDN
(and its underlying OpenFlow protocol) was designed initially to run in the wired network
where SDN controller has wired access to all the switches in the network. To address this
challenge, we propose a pure opneflow based approach for adapting SDN in wireless mesh
netowrks by extending current OpenFlow protocol for routing in the wireless network
Study of maternal and fetal outcome in pregnancy beyond 40 weeks: a prospective observational study at a tertiary institute
No full textBackground: Prolonged pregnancy is one that exceeds 42 0/7weeks. Management of prolonged pregnancy is very challenging in modern obstetrics.Methods: It is prospective observational study in department of Obstetrics and Gynecology, Shri B.M Patil medical college and Research center, deemed to be University, Vijayapur, North karnataka. Study period was from January 2018 to January 2019.Results: Total of 186 pregnant women were included in the study. Results in terms of age, gravidity, gestational age, time of induction, mode of delivery, neonatal outcome and maternal complications.Conclusion: Pregnancies beyond 40 weeks require early detection, effective fetal monitoring and proper planning of labour. In pregnancies beyond 40 weeks, decision of induction should be taken cautiously as early induction leads to failure of induction and increased rates of lower (uterine) segment Caesarean section (LSCS), while delayed induction leads to increased fetal complications
Morphological Variability of the Curvularia lunata Associated with Grain Discoloration of Rice
No full textRice is an important staple crop and India is the largest grower in the world. Rice suffers from many diseases caused by fungi of which grain discoloration disease is a complex disease due to infection by certain microorganisms on the glumes, kernels, or both. Curvularia lunata is a one of major fungal plant pathogen that infects rice and causes grain discolouration. On the basis of cultural and morphological identification, 60 isolates of Curvularia lunata were collected from different locations of Karnataka. These isolates were grown on PDA media and were characterized for colony morphology. The Curvularia lunata isolates, maximum size of conidia was observed in Cl-22 (20.30 m long ×10.90 m wide) and maximum dry mycelium weight was observed in Cl-15 (482.22 mg), while poor sporulations (<1-10 conidia per microscope field) was noticed in Cl-17, 19, 28, 30, 45 and Cl-50
Survey and Surveillance on Major Rice Diseases Severity in Karnataka, India
No full textRice blast, sheath blight and Grain discoloration diseases of rice were becoming a serious threat to rice crop in Karnataka. The patterns of spatio-temporal distribution of disease incidence were examined in two seasons (Kharif 2012 and 2013) with main objective of statues of rice diseases in paddy growing areas of Karnataka and variability with climatic condition. Most of the fields in the paddy growing areas of Karnataka were diseased, but significant differences in disease incidence occurred among the some sites in paddy growing areas of Karnataka. The leaf blast severity showed that the highest mean per cent disease incidence 37.20 was observed in Mandya district.and sheath blight severity showed that the highest mean per cent disease incidence 41.76 was observed in Yadgir district. The spatio-temporal distribution of grain discoloration incidence in Kharif 2012 and 2013 varied with districts, the maximum disease was in Bellary (33.82% and 31.24%) followed by Koppal (31.78% and 27.16%), for sheath blight, maximum disease was in Yadgir (36.23% and 41.76%) followed by Raichur (27.16% and 30.59%) and maximum leaf blast disease was in Mandya (37.20% and 36.91%) followed by Ramanagar (36.67% and 36.54%) respectively. Many fungi have been isolated from discolored grain, Curvularia lunata (Wakker) Boed. were found as a dominant pathogen. Survey and surveillance were serve as a precursor for evolving management strategies against the disease effective for the zone in an integrated way for sustainable development of crop in the state
A split face comparative interventional study to evaluate the efficacy of fractional carbon dioxide laser against combined use of fractional carbon dioxide laser and platelet-rich plasma in the treatment of acne scars
No full textBackground: Fractional carbon dioxide laser (FCL) is an established treatment option for acne scars, but use of platelet-rich plasma (PRP) as an adjuvant still requires elaborate studies. Aim: To compare the efficacy and safety of FCL alone and combined use of FCL with PRP in the treatment of acne scars. Materials and Methods: This was a split-face (right-left) comparative study including 32 patients with moderate to severe acne scars. The patients underwent three sessions of FCL along with PRP and FCL alone on right and left sides of the face, respectively, at an interval of 6 weeks. Goodman and Baron qualitative and quantitative scores were used for the evaluation of results along with visual analog scale (VAS) for patient satisfaction and physician assessment of scars. Adverse effects following the procedure were also evaluated and compared. Results: There was significant improvement of scars over both sides of the face, but the difference between right and left sides was not statistically significant according to Goodman and Baron qualitative (p 0.9115) and quantitative score (p 0.6957). On assessing VAS score, patients were more satisfied with the right side, but the values were not statistically significant (p 0.8571). Physician assessment grading showed comparable results over both the sides (p 1). There was no difference in adverse effects between both sides of the face. Conclusions: Inclusion of intradermal PRP to FCL did not produce any statistically significant synergistic effects in the treatment of acne scars
Zn doped CdO thin films with enhanced linear and third order nonlinear optical properties for optoelectronic applications
No full textDermatitis artefacta (factitious dermatitis) responding to high-dose sertraline
No full textDermatitis artefacta (factitious dermatitis) is a prototypical psychodermatological condition. This condition though not uncommon its management involves complete psychiatric evaluation and treatment. It is commonly seen in patients with underlying psychological conflicts. There are no systematic studies to assess the efficacy of medicines for this condition. However, reports of improvement with selective serotonin reuptake inhibitors and atypical antipsychotics are present. Here, we report a case of dermatitis artefacta responding to high dose of sertraline
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