Common conditions associated with mandibular canal widening: A literature review

Hamed Mortazavi,Maryam Baharvand,Yaser Safi,Kazem Dalaie,Mohammad Behnaz,Fatemeh Safari 대한영상치의학회 2019 Imaging Science in Dentistry Vol.49 No.2

Purpose: The aim of this study was to review the common conditions associated with mandibular canal widening. Materials and Methods: General search engines and specialized databases including Google Scholar, PubMed, PubMed Central, Science Direct, and Scopus were used to find relevant studies by using the following keywords: “mandibular canal,” “alveolar canal,” “inferior alveolar nerve canal,” “inferior dental canal,” “inferior mandibular canal,” “widening,” “enlargement,” “distension,” “expansion,” and “dilation.” Results: In total, 130 articles were found, of which 80 were broadly relevant to the topic. We ultimately included 38 articles that were closely related to the topic of interest. When the data were compiled, the following 7 lesions were found to have a relationship with mandibular canal widening: non-Hodgkin lymphoma, osteosarcoma, schwannoma, neurofibroma, vascular malformation/hemangioma, multiple endocrine neoplasia syndromes, and perineural spreading or invasion. Conclusion: When clinicians encounter a lesion associated with mandibular canal widening, they should immediately consider these entities in the differential diagnosis. Doing so will help dentists make more accurate diagnoses and develop better treatment plans based on patients’ radiographs.

Common conditions associated with mandibular canal widening: A literature review

Mortazavi, Hamed,Baharvand, Maryam,Safi, Yaser,Dalaie, Kazem,Behnaz, Mohammad,Safari, Fatemeh Korean Academy of Oral and Maxillofacial Radiology 2019 Imaging Science in Dentistry Vol.49 No.2

Purpose: The aim of this study was to review the common conditions associated with mandibular canal widening. Materials and Methods: General search engines and specialized databases including Google Scholar, PubMed, PubMed Central, Science Direct, and Scopus were used to find relevant studies by using the following keywords: "mandibular canal," "alveolar canal," "inferior alveolar nerve canal," "inferior dental canal," "inferior mandibular canal," "widening," "enlargement," "distension," "expansion," and "dilation." Results: In total, 130 articles were found, of which 80 were broadly relevant to the topic. We ultimately included 38 articles that were closely related to the topic of interest. When the data were compiled, the following 7 lesions were found to have a relationship with mandibular canal widening: non-Hodgkin lymphoma, osteosarcoma, schwannoma, neurofibroma, vascular malformation/hemangioma, multiple endocrine neoplasia syndromes, and perineural spreading or invasion. Conclusion: When clinicians encounter a lesion associated with mandibular canal widening, they should immediately consider these entities in the differential diagnosis. Doing so will help dentists make more accurate diagnoses and develop better treatment plans based on patients' radiographs.

Heuristic Guided Artificial Potential Field for Avoidance of Small Obstacles

Sagar Dalai,Mahammad Irfan,Samarth Singh,Kaushal Kishore,Dr. S.A Akbar 제어로봇시스템학회 2021 제어로봇시스템학회 국제학술대회 논문집 Vol.2021 No.10

In this paper, a modified heuristic guided Artificial Potential Field (APF) based algorithm has been proposed to find a practical trajectory for an Autonomous Unmanned Aerial Vehicle (UAV) path planning. The local minima are encountered in the conventional APF algorithm due to the cancellation of attractive and repulsive potential while avoiding unknown obstacles within the desired path, which results in the trapping of the agent before reaching the goal. Consequently, the traditional APF technique is therefore no longer advantageous in such cases. So in this proposed perpendicular approach based on APF helps to avoid such local minima. The advantage of the newly proposed method is the low computing time that lines up with the standard global path planner method. The proposed algorithm is tested and validated against existing general potential field techniques for different simulation scenarios in a 3D simulated environment using ROS and Gazebo supported PX4-SITL. The results have been presented for drone navigation and obstacle avoidance for the different scenarios in a simulated environment.

Anticholinesterase activity of Cinnamomum zeylanicum L. leaf extract

Manoj Kumar Dalai,Santanu Bhadra,Sushil Kumar Chaudhary,Joydeb Chanda,Arun Bandyopadhyay,Pulok K Mukherjee 셀메드 세포교정의약학회 2014 셀메드 (CellMed) Vol.4 No.2

Cinnamomum zeylanicum ( C. zeylanicum ) is a tropical evergreen tree of Lauraceae family. It is one of the oldest culinary spices known and used traditionally in many cultures for centuries. In addition to its culinary uses, cinnamon also possesses as a folk remedy of many health disease condition including analgesic, antiseptic, antispasmodic, aphrodisiac, astringent, carminative, haemostatic, insecticidal, and parasiticide and memory enhancing property. This study was aimed to assess the acetylcholinesterase and butyrylcholinesterase inhibitory activity of standardized methanol extract of the C. zeylanicum . Gas chromatography - mass spectrometry (GC-MS) and high performance liquid chromatography (HPLC) analysis were done to identify the presence of eugenol as chemical component and support the neuroprotective activity in the extract. Anticholinesterase inhibitory activity of crude methanol extract of C. zeylanicum leaves and cinnamon oil were evaluated by 96-well microtiter plate assay and thin layer chromatography bioassay detection methods. This study revealed that cinnamon oil (IC 50 : 45.88 ± 1.94 μg/ml) has better anticholinesterase activity than methanol extract (IC 50 : 77.78 ± 0.03 μg/ml). In HPLC analysis, retention time of eugenol in cinnamon oil was found to be 15.81 min which was comparable with the retention time (15.99 min) of the reference standard, eugenol. Seven chemical compounds were identified by GC-MS analysis, in which eugenol as an important phytoconstituents. Thus the phytochemicals from C. zeylanicum methanol leaves extract could be developed as potential source of anticholinesterase activity, with particular benefit in the symptomatic treatment of Alzheimer’s disease.

A curious case of a lost capsule: A rare case of small bowel diaphragm disease

Motij Kumar Dalai,Meghraj Anand Ingle,Vikas Pandey,Shamshersingh Gajendra Chauhan,Yogesh Bairwa,Rohit Wagh 소화기인터벤션의학회 2023 International journal of gastrointestinal interven Vol.12 No.4

Diaphragm disease (DD) is a rare condition that is associated with the use of nonsteroidal anti-inflammatory drugs. It is characterized by multiple diaphragm- like septa that cause a narrowing of the small bowel lumen. The diagnosis of this disorder can be challenging due to its rarity and its nonspecific symptoms, which often suggest other, more probable diseases. We report the case of a 16-year-old boy who presented with iron-deficiency anemia that did not respond to iron supplementation. Despite undergoing endoscopy and computed tomography (CT) enterography, the cause of his condition could not be identified. Capsule endoscopy was attempted, but due to technical difficulties, images could not be obtained. Two years later, the patient's symptoms persisted, prompting further investigation. CT enterography revealed a foreign body in the distal ileum, which was identified as the previously administered capsule. Diagnostic laparoscopy with intraoperative endoscopy was performed to retrieve the capsule. This procedure also revealed multiple short-segment strictures causing luminal narrowing and ulcerations. These were confirmed by histopathology to be lesions associated with DD.

The Database Structure for Bi-Directional Textual Transformation Between Two Mongolian Scripts

Batzolboo Bataa,Zayabaatar Dalai,Munkh-Uchral Enkhtur,Namsrai Yumbayar 대한전자공학회 2006 ICEIC:International Conference on Electronics, Inf Vol.2006 No.6

Mitochondrial DNA variation and phylogeography of Old World camels

Ming Liang,Siren Dalai,Yi Li,Hai Le,He Jing,Ji Rimutu 아세아·태평양축산학회 2021 Animal Bioscience Vol.34 No.4

Objective: Old World camels are a valuable genetic resource for many countries around the world due to their adaptation to the desert environment. At present, Old World camels have encountered the challenge of unprecedented loss of genetic resources. Through our research, we would reveal the population structure and genetic variation in Old World camel populations, which provides a theoretical basis for understanding the germplasm resources and origin and evolution of different Old World camel populations. Methods: In the present study, we assessed mtDNA control region sequences of 182 individuals from Old World camels to unravel genetic diversity, phylogeography, and demographic dynamics. Results: Thirty-two haplotypes confirmed by 54 polymorphic sites were identified in the 156 sequences, which included 129 domestic and 27 wild Bactrian camels. Meanwhile, 14 haplotypes were defined by 47 polymorphic sites from 26 sequences in the dromedaries. The wild Bactrian camel population showed the lowest haplotype and nucleotide diversity, while the dromedaries investigated had the highest. The phylogenetic analysis suggests that there are several shared haplotypes in different Bactrian camel populations, and that there has been genetic introgression between domestic Bactrian camels and dromedaries. In addition, positive values of Tajima’s D and Fu’s Fs test demonstrated a decrease in population size and/or balancing selection in the wild Bactrian camel population. In contrast, the negative values of Tajima’s D and Fu’s Fs test in East Asian Bactrian camel populations explained the demographic expansion and/or positive selection. Conclusion: In summary, we report novel information regarding the genetic diversity, population structure and demographic dynamics of Old World camels. The findings obtained from the present study reveal that abundant genetic diversity occurs in domestic Bactrian camel populations and dromedaries, while there are low levels of haplotype and nucleotide diversity in the wild Bactrian camel population. Objective: Old World camels are a valuable genetic resource for many countries around the world due to their adaptation to the desert environment. At present, Old World camels have encountered the challenge of unprecedented loss of genetic resources. Through our research, we would reveal the population structure and genetic variation in Old World camel populations, which provides a theoretical basis for understanding the germplasm resources and origin and evolution of different Old World camel populations.Methods: In the present study, we assessed mtDNA control region sequences of 182 individuals from Old World camels to unravel genetic diversity, phylogeography, and demographic dynamics.Results: Thirty-two haplotypes confirmed by 54 polymorphic sites were identified in the 156 sequences, which included 129 domestic and 27 wild Bactrian camels. Meanwhile, 14 haplotypes were defined by 47 polymorphic sites from 26 sequences in the dromedaries. The wild Bactrian camel population showed the lowest haplotype and nucleotide diversity, while the dromedaries investigated had the highest. The phylogenetic analysis suggests that there are several shared haplotypes in different Bactrian camel populations, and that there has been genetic introgression between domestic Bactrian camels and dromedaries. In addition, positive values of Tajima’s D and Fu’s <i>Fs</i> test demonstrated a decrease in population size and/or balancing selection in the wild Bactrian camel population. In contrast, the negative values of Tajima’s D and Fu’s <i>Fs</i> test in East Asian Bactrian camel populations explained the demographic expansion and/or positive selection.Conclusion: In summary, we report novel information regarding the genetic diversity, population structure and demographic dynamics of Old World camels. The findings obtained from the present study reveal that abundant genetic diversity occurs in domestic Bactrian camel populations and dromedaries, while there are low levels of haplotype and nucleotide diversity in the wild Bactrian camel population.

An overview on the recent advancements of sustainable heterogeneous catalysts and prominent continuous reactor for biodiesel production

Jharna Gupta,Madhu Agarwal,A.K. Dalai 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.88 No.-

Biodiesel is a renewable energy source. However, high production cost, low product efficiency, and longreaction time have been the main technical challenges in biodiesel synthesis. Recently, various types ofheterogeneous catalyst and continuous reactor have been invented for the production of biodiesel. Butmost of the catalysts are not suitable for large-scale industrial application for biodiesel synthesis due tohigh cost. Therefore, there is a need for exploring more suitable and economical heterogeneous catalyst. From literature, CaO derived catalyst from waste sources found to be the best heterogeneous catalyst forlow-cost biodiesel synthesis. In continuous reactors, good mixing of reactants for mass transfer resistantis the primary requirement for good yield of biodiesel. Therefore, reverseflow helical coil reactor is foundto be the good solution to overcome these problems which provide a good yield of biodiesel. Dependingupon the type of catalysts and reactors used in this process, the reaction rate, energy consumption, molarratio of methanol to oil and raw material will vary. Therefore, there is a need for a right combination ofreactor and catalyst for getting higher biodiesel yield.

Novel YBO3 phosphors doped with Ln3+ (Ce3+, Tb3+, Eu3+) ions with tunable color for WLED applications

Shuo Kang,Zhikui Yu,Qirong Tian,Minghui Tai,Jiaoying Wang,Dalai Jin,Longcheng Wang 대한금속·재료학회 2022 ELECTRONIC MATERIALS LETTERS Vol.18 No.6

In this work, YBO3phosphors doped with Ln3+(Ce3+, Tb3+,Eu3+)ions were synthesized by a facile hydrothermal methodusing high temperature and high pressure environment. Structural property characterizations show all the samples have asimilar spherical morphology and a hexagonal crystal structure with good crystallinity. PL spectra and CIE calculation showthat the color of phosphors can be easily controlled by the species and atomic content of Ln3+ions. White color is achievedas the atomic contents of Ln3+ions are: 1% Ce3+,3% Tb3+,and 0.5% Eu3+,respectively. Furthermore, LED devices basedon ultraviolet chip were fabricated and characterized, and the results clearly demonstrated the tunable color of as-preparedphosphors. At the same time, co-doping Ce3+,Tb3+,and Eu3+ions can well adjust the fluorescence lifetime of the threerare earth ions through energy transfer. These results show that the phosphor has broad application prospects in the field ofdisplay lighting such as LED.

π-Acceptor-functionalized particles: Synthesis, characterization and effect of cross-linking agents on adsorptive removal of nitrogen- and sulfur-compounds from light gas oil

Jackson M. Chitanda,Ruth Azar,Ali Abedi,Ajay K. Dalai,John D. Adjaye 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.44 No.-

This work investigated the effect of cross-linking agents on the efficiency and selectivity offunctionalized polymers toward the removal of nitrogen- and sulfur-containing compounds fromgas-oil. The following polymeric supports with increasing particles size were synthesized: poly(glycidylmethacrylate) [PGMA], poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [PGMA-co-EGDMA] and poly(glycidyl methacrylate-co-trimethylolpropane trimethacrylate)[PGMA-co-TMPTMA]. Diaminopropane (DAP) and tetra-nitro-9-fluorenone (TENF) were utilized as a linker and a p-acceptormoiety, respectively. Particles were fully characterized using different methods including Fouriertransform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller (BET), thermogravimetric analysis/differential thermal analysis (TGA/DTA), etc. Results showed that the particles with the larger sphericalbeads [PGMA-co-TMPTMA-DAP(3)-TENF] gave the highest nitrogen and sulfur adsorption.