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Journal articles on the topic 'Sphenic number'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

S., Yahya Mohamed *. &. M. Prem Kumar. "A NOTE ON SPECIAL PAIRS OF PYTHAGOREAN TRIANGLE AND 3-DIGIT SPHENIC NUMBER." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 7 (2017): 242–46. https://doi.org/10.5281/zenodo.823122.

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In this paper , we present pairs of Pythagorean triangles such in each pair, the difference between their perimeters is four times the 3-digit Sphenic number 110. Also we present the number of pairs of primitive and non- primitive Pythagorean triangles.

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Thangam, S. Aarthy, S. Vidhyalakshmi, and Gopalan M A. "Observation On The Paper Entitled “Special Pairs Of Rectangles And Sphenic Number”." International Journal of Multidisciplinary Research and Studies 02, no. 03 (2019): 01–04. http://dx.doi.org/10.33826/ijmras/v02i03-01.

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3

Mallika, S. "A Connection between Pythagorean Triangle and Sphenic Numbers." International Journal for Research in Applied Science and Engineering Technology 7, no. 3 (2019): 63–66. http://dx.doi.org/10.22214/ijraset.2019.3011.

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Janaki, G. "Pythagorean Triangle with Area/Perimeter as a 4-digit consecutive Sphenic numbers." International Journal for Research in Applied Science and Engineering Technology V, no. IX (2017): 320–24. http://dx.doi.org/10.22214/ijraset.2017.9047.

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Vidhya, S., and G. Janaki. "An Integral Solution of Negative Pells equation involving two digit sphenic numbers." International Journal of Computer Sciences and Engineering 6, no. 7 (2018): 444–45. http://dx.doi.org/10.26438/ijcse/v6i7.444445.

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6

Qi, Dewei. "Non-Spheric Colloidal Suspensions in Three-Dimensional Space." International Journal of Modern Physics C 08, no. 04 (1997): 985–97. http://dx.doi.org/10.1142/s0129183197000850.

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The translation and rotation of non-spherical particles, such as ellipsoidal, cylindric or disk-like pigment particles, in a Couette flow system similar to a blade coating system in the paper industry6 have been successfully simulated by using the lattice-Boltzmann method combined with Newtonian dynamic simulations. Hydrodynamic forces and torques are obtained by the use of boundary conditions which match the moving surface of solid particles. Then Euler equations have been integrated to include three-dimensional rotations of the suspensions by using four quaternion parameters as generalized c

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Ioniţă, C., Alexandra Guligă, Andreea Nicoleta Costache, et al. "Sphenoid sinus CT aspects." ORL.ro 4, no. 1 (2016): 8–12. http://dx.doi.org/10.26416/orl.33.4.2016.153.

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The sphenoid is one of the paranasal sinuses with the greatest number of anatomic variants. The complexity of the sphenoid sinus requires close clinical and radiological examination, prior to surgery, in order to prevent life-threatening complications during surgery. This paper presents the tomographic particularities of the sphenoid sinus in order to illustrate the importance of proper pre-operative preparation in endoscopic approach to sphenoidal sinus pathology.

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Kang, Yun Jin, Jin-Hee Cho, Do Hyun Kim, and Sung Won Kim. "Relationships of sphenoid sinus pneumatization with internal carotid artery characteristics." PLOS ONE 17, no. 8 (2022): e0273545. http://dx.doi.org/10.1371/journal.pone.0273545.

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Objective We explored the clinical significances of the relationships among sphenoid sinus aeration, intersphenoid sinus septum (ISS), and internal carotid artery (ICA). Methods We retrospectively reviewed the preoperative paranasal sinus computed tomography scans and the medical charts of 490 patients who were treated by the endoscopic endonasal transsphenoidal approach. We analyzed sphenoid sinus pneumatization, number of ISS, and positional relationships between the ICA and ISS (including ICA prominence and the thickness of surrounding bone). Results ISS were often present in the ICAs of pa

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Sumislawski, Piotr, Martyna Piotrowska, Jan Regelsberger, Jörg Flitsch, and Roman Rotermund. "Sphenoid Sinus Mucosal Flap after Transsphenoidal Surgery—A Systematic Review." Medicina 60, no. 2 (2024): 282. http://dx.doi.org/10.3390/medicina60020282.

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Background and Objectives: Skull base reconstruction is a crucial step during transsphenoidal surgery. Sphenoid mucosa is a mucosal membrane located in the sphenoid sinus. Preservation and lateral shifting of sphenoid mucosa as sphenoid mucosal flap (SMF) during the transsphenoidal exposure of the sella may be important for later closure. This is the first systematic review to evaluate the utility of sphenoid mucosal flap for sellar reconstruction after transsphenoidal surgery. Materials and Methods: A systematic literature search was performed in January 2023: Cochrane, EMBASE, PubMed, Scopus

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Nepal, Pankaj Raj, Karuna Tamrakar Karki, and Jagat Narayan Rajbanshi. "Types of Sphenoid Sinus Pneumatization among Nepalese Population." Eastern Green Neurosurgery 2, no. 3 (2020): 14–18. http://dx.doi.org/10.3126/egn.v2i3.31468.

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Background: The sphenoid sinus is a very important route during the surgical procedure for the lesions inside and around the sella tercica. With the aim to evaluate the anatomical variations of these sphenoid sinuses in the Nepalese population, this study was performed. Methods and Materials: This is a Cross-Sectional analytical study with a non-probability consecutive sampling. Patients of all age groups and all gender who underwent a CT scan of head for any reason were collected, excluding the patients whose sella and / or sphenoid sinus was distorted or fractured for various reasons.

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Buys, Sandor Christiano. "Sphecidae (Hymenoptera: Apoidea) of Rio de Janeiro State (Southeast Brazil): new geographic records and remarks on faunal distribution." Biota Neotropica 11, no. 4 (2011): 369–72. http://dx.doi.org/10.1590/s1676-06032011000400032.

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Aiming to improve the database produced during the project Diversity of the Atlantic Forest of the Rio de Janeiro State, new geographic records of sphecid wasps in Rio de Janeiro State are provided. The sphecid fauna found in the sandy coastal plains, lowland forested areas and highland areas on the Serra dos Órgãos are compared and an estimate of the total number of species of Sphecidae from Rio de Janeiro State is provided.

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Dedhia, Raj D., Tsung-yen Hsieh, Yecenia Rubalcava, et al. "Posterior Maxillary Sinus Wall: A Landmark for Identifying the Sphenoid Sinus Ostium." Annals of Otology, Rhinology & Laryngology 128, no. 3 (2018): 215–19. http://dx.doi.org/10.1177/0003489418816725.

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Importance: Safe entry into sphenoid sinus is critical in endoscopic sinus and skull base surgery. A number of surgical landmarks have been used to identify the sphenoid sinus ostium during endoscopic endonasal surgery with variable reliability and intraoperative feasibility. Objective: To determine if the posterior wall of the maxillary sinus is a reliable landmark to determine the depth of the sphenoid sinus ostium during anterior to posterior dissection. Design, Setting, and Participants: Prospective study of adult patients undergoing endoscopic sinus surgery between August 2016 and Septemb

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Amirthalingam, Umamageswari, Raveendranath Veeramani, and Vigneshwar Adhithiya. "Assessment of Computed Tomography-Based Sphenoidal and Sellar Parameters Relevant to Transsphenoidal Approach in Sellar and Parasellar Surgeries." Medical Journal of Dr. D.Y. Patil Vidyapeeth 16, no. 3 (2023): 381–85. http://dx.doi.org/10.4103/mjdrdypu.mjdrdypu_979_21.

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ABSTRACT Aim: To study the sphenoid and sellar parameters relevant to transsphenoidal approach in sellar and parasellar surgeries. Objectives: (1) To estimate the types of pneumatization of sphenoid sinus and intersphenoidal septum, (2) To assess the attachment and number of intersphenoidal septum among those who have intersphenoidal septum, (3) To determine the thickness of the anterior wall and floor of sella, and (4) To calculate the intercarotid distance of the intracavernous internal carotid artery. Methods: This was a record-based descriptive study. All retrospective computed tomographic

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Lazariev, Denys. "Craniological features of the muskrat (Ondatra) and its differences from the genus Arvicola." Novitates Theriologicae 2023, no. 16 (2023): 62–68. http://dx.doi.org/10.53452/nt1611.

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An overview of the craniological differences between muskrats and sympatric Arvicola based on materials from Ukraine is presented. One of the most notable differences is the absence of cement on the molars of muskrats, which is typical for all Arvicolini. The shape of the occlusal surface of muskrat molars is also characterised by a smaller number of enamel loops and a more rounded shape. The shape of the connection between the pterygoid processes of the sphenoid bones and the auditory bulla is different in these two genera. A number of other differences have been described, including the shap

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Degaga, Tizita K., Abay M. Zenebe, Amenu T. Wirtu, Tequam D. Woldehawariat, Seife T. Dellie, and Jickssa M. Gemechu. "Anatomographic Variants of Sphenoid Sinus in Ethiopian Population." Diagnostics 10, no. 11 (2020): 970. http://dx.doi.org/10.3390/diagnostics10110970.

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Neurosurgeons often neglect the sphenoid sinus due to its deep location and difficulties in accessing during surgical interventions. Disease of the sphenoid sinus is difficult to diagnose since its presenting symptoms are difficult to recognize. Moreover, compared with other paranasal sinuses, the sphenoid sinus is considered the most variable air sinus in terms of its degree of pneumatization, number and position of inter-sinus septa, and its relationship with the surrounding anatomical structures. Anatomical variations of the sphenoid sinus are significant from a neurosurgical point of view.

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Jang, Yong Ju, and Seung Cheol Kim. "Pneumatization of the Sphenoid Sinus in Children Evaluated by Magnetic Resonance Imaging." American Journal of Rhinology 14, no. 3 (2000): 181–86. http://dx.doi.org/10.2500/105065800782102771.

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Previous studies concerned with the normal development of the sphenoid sinus have reported that the onset of initial pneumatization varies from 6 months to 4 years of life, and that the pneumatization is completed by 12 to 14 years of age. This study was designed to evaluate the age-related development of the sphenoid sinus pneumatization in children using magnetic resonance (MR) imaging technique. MR images of the sphenoid sinus in 152 children, ages 2 months to 163 months, were retrospectively reviewed. The degree of pneumatization was classified into four grades as 0, 1, 2, and 3 in axial i

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Pantic, Jelena, Volker Kahlenberg, Vesna Poharc-Logar, and Aleksandar Kremenovic. "Natural CaO-TiO2-SiO2 based ceramics." Processing and Application of Ceramics 5, no. 2 (2011): 79–84. http://dx.doi.org/10.2298/pac1102079p.

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Lesnica river deposits consist of a large number of minerals of different grain sizes including sphene. Since it is very difficult to obtain pure monophase titanite by different synthetic routes (sol-gel, coprecipitation, combustion, spray pyrolysis and hydrothermal method), the aim of this work was to study the structure of the sphene from the Lesnica river deposits and possibility of using it as a natural precursor for CaO-TiO2-SiO2 based ceramics. The sphene from Lesnica was analyzed by different methods: tristimulus colorimetry, infrared spectroscopy, electron microprobe and X-ray single c

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Osipov, V. A., A. N. Pastukhov, O. I. Kurbatov, and Yu P. Potekhina. "Histological examination of cranial synchondroses as functionally significant elements in the cranial osteopathic concept." Russian Osteopathic Journal, no. 4 (December 30, 2021): 29–38. http://dx.doi.org/10.32885/2220-0975-2021-4-29-38.

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Introduction. In recent decades, medical science has accumulated convincing evidence of the fact that the normal activity of a human brain depends on the functional integration of its vascular system, a circulation system of cerebrospinal fluid and biomechanical features of a skull, forming a single structural and functional system.The aim of the study is to research the histological structure of functionally significant cranial synchondroses in the middle and elderly age group, to find possible points of osteopathic influence application in their structure. Materials and methods. The study wa

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Wani, Abdul Haseeb, Yassar Shiekh, Arshed Hussain Parry, and Zahid Qayoom. "Anatomical variations of intra-sphenoid sinus septations in a sample of Kashmiri population: a non-contrast computed tomography study." International Journal of Research in Medical Sciences 7, no. 5 (2019): 1445. http://dx.doi.org/10.18203/2320-6012.ijrms20191525.

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Background: The sphenoid sinus shows multitude of variations in pneumatization, size and pattern of septations leading to differences in its segmentation. Pre-operative knowledge of their attachment especially to posterolateral bony walls covering vital structures is of utmost importance for a safe trans-sphenoidal approach for various surgical procedures involving skull base. Non-contrast computed tomography (NCCT) with its ability to provide multiplanar reformations (MPR) with sharp algorithms is now a reference standard for visualization of these intra-sphenoid sinus septations preoperative

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Farrapeira, Cristiane Maria Rocha, Gledson Fabiano de Araujo Ferreira, and Deusinete de Oliveira Tenório. "Intra-regional transportation of a tugboat fouling community between the ports of recife and natal, northeast Brazil." Brazilian Journal of Oceanography 58, spe3 (2010): 01–14. http://dx.doi.org/10.1590/s1679-87592010000700002.

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This study aimed to identify the incrusting and sedentary animals associated with the hull of a tugboat active in the ports of Pernambuco and later loaned to the port of Natal, Rio Grande do Norte. Thus, areas with dense biofouling were scraped and the species then classified in terms of their bioinvasive status for the Brazilian coast. Six were native to Brazil, two were cryptogenic and 16 nonindigenous; nine of the latter were classified as established (Musculus lateralis, Sphenia fragilis, Balanus trigonus, Biflustra savartii, Botrylloides nigrum, Didemnum psammatodes, Herdmania pallida, Mi

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Aijaz, Asma, Naheed Khan, Sahar Mubeen, and Binish Rasheed. "Anatomical variations of human sphenoid sinus in terms of volume and septation pattern in a subset of Pakistani population using computed tomographic images." Journal of the Pakistan Medical Association 72, no. 4 (2022): 702–6. http://dx.doi.org/10.47391/jpma.3543.

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Objectives: To compare the sphenoid volume between the genders and to analyse variations in septal insertions on bony wall of optic nerve and internal carotid artery. Methods: The prospective study was conducted from October 2020 to February 2021 at the Radiology Department of Dow University of Health Sciences, Karachi, and comprised paranasal sinus patients of either gender aged 20-60 without any bony deformity of sphenoid sinus who were analysed for sphenoid volume, number of septa and variable septal insertions using computed tomography of paranasal sinus. On the basis of septal insertions,

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Idzikowska, Krystyna. "Mitochondria during androgenesis in Hordeum vulgare." Acta Societatis Botanicorum Poloniae 50, no. 3 (2014): 359–66. http://dx.doi.org/10.5586/asbp.1981.058.

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Different number of mitochondria of varying structure was observed in particular stages of the development of barley (<em>Hordeum vulgare</em>) microspores, stimulated by the <em>in vitro</em> culture to form embryoids. This variability was reflected in different shape of sections, different ratio between total area of mitochondria profiles and area of cytoplasm sections, varying number of cristae, and different density of the matrix. Within the cristae of some mitochondria crystalline inclusions were observed. Mitochondria divided by a contraction. In the matrix of som

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Zada, Gabriel, Pankaj K. Agarwalla, Srinivasan Mukundan, Ian Dunn, Alexandra J. Golby, and Edward R. Laws. "The neurosurgical anatomy of the sphenoid sinus and sellar floor in endoscopic transsphenoidal surgery." Journal of Neurosurgery 114, no. 5 (2011): 1319–30. http://dx.doi.org/10.3171/2010.11.jns10768.

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Object A considerable degree of variability exists in the anatomy of the sphenoid sinus, sella turcica, and surrounding skull base structures. The authors aimed to characterize neuroimaging and intraoperative variations in the sagittal and coronal surgical anatomy of healthy controls and patients with sellar lesions. Methods Magnetic resonance imaging studies obtained in 100 healthy adults and 78 patients with sellar lesions were reviewed. The following measurements were made on midline sagittal images: sellar face, sellar prominence, sellar angle, tuberculum sellae angle, sellar-clival angle,

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Sidoli, Nathan. "The manuscript diagrams of Theodosios’ Spherics." Journal for the History of Astronomy 55, no. 4 (2024): 454–89. http://dx.doi.org/10.1177/00218286241248639.

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This paper is a study of the visual characteristics of the medieval manuscript diagrams found in Theodosios’ Spherics. It provides a new taxonomy of eight types of diagrams found in the manuscript sources, and examines the way in which geometric information is encoded in the manuscript diagrams using a number of visual encodings. It then argues that these diagrams can be used to address ongoing research debates about whether the striking visual characteristics of medieval diagrams in mathematical texts are the result of deliberate choices by the premodern authors, the result of accidents of tr

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Dewan, Karuna, John H. Baird, and Courtney B. Shires. "An Unusual Cause of Epistaxis: Paranasal Sinus Myeloid Sarcoma." Case Reports in Hematology 2019 (February 12, 2019): 1–5. http://dx.doi.org/10.1155/2019/1312630.

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We report a case of a 65-year-old female who presented with right-sided headaches, blurring of vision in the right eye, cold-induced epistaxis, and facial numbness in the trigeminal nerve distribution. Laboratory studies revealed a significant number of myeloblasts on peripheral smear with granulated cytoplasm, irregular nuclei, and prominent vacuoles. Magnetic resonance imaging (MRI) of the brain demonstrated a T1-enhancing 1.5 cm right-sided dural-based lesion involving the medial sphenoid wing, cavernous sinus, infratemporal fossa, and sphenoid sinus region. An endoscopic biopsy of the lesi

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Wardas, Piotr, Agnieszka Piotrowska-Seweryn, Jarosław Markowski, Maciej Kaspera, Joanna Symela, and Aleksandra Ślaska-Kaspera. "Chronic sphenoid sinusitis with bone destruction – surgical treatment of five patients." Polski Przegląd Otorynolaryngologiczny 6, no. 3 (2017): 46–53. http://dx.doi.org/10.5604/01.3001.0010.4237.

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Chronic sinusitis of the sphenoid sinus is a disease that can cause a number of complications, mainly intracranial and ophthalmic ones. The proximity of critical anatomical structures such as the internal carotid artery, cranial nerves, cavernous sinus, dura mater and cerebral lobes puts any or all of these at risk and challenge due to the disease process itself and in surgical management as well. Infiltration of bone structures or its damage in the mechanism of compression is recorded in cases of fungal rhinosinusitis (FRS), Wegener's granulomatosis or actinitis with manifestation in the area

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Newman, Nadya Imani, Diego Santiago de Mendonça, Paulo Goberlânio de Barros Silva, Esther Carneiro Ribeiro, and Fábio Wildson Gurgel Costa. "PREVALENCE OF SEPTATION AND SYMMETRY OF SPHENOID SINUS AND NASAL SEPTAL DEVIATION IN MULTISLICE COMPUTED TOMOGRAPHY." Brazilian Journal of Case Reports 3, Suppl.8 (2023): 11. http://dx.doi.org/10.52600/2763-583x.bjcr.2023.3.suppl.8.11.

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The sphenoid sinuses (SS) are pneumatic spaces located in the diaphysis of the sphenoid bone. The morphology of the SS is characterized by great diversity. One such being the presence of septa; which may vary in number and be complete or incomplete. In the present study, we investigated: total number of septa present and whether there is a relationship between septation, symmetry and nasal septal deviation (SD) using multidetector computed tomography (MDCT) in adults from thestate of Para and Ceara. A retrospective cross-sectional study was carried out with images of patients who did not prese

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Seltzer, Justin, Joshua Lucas, Deborah Commins, et al. "Ectopic ACTH-secreting pituitary adenoma of the sphenoid sinus: case report of endoscopic endonasal resection and systematic review of the literature." Neurosurgical Focus 38, no. 2 (2015): E10. http://dx.doi.org/10.3171/2014.10.focus14685.

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Ectopic pituitary adenomas are exceedingly rare entities that are often misdiagnosed. The resulting delay in diagnosis may be particularly concerning in the case of Cushing syndrome caused by an ectopic adrenocorticotropic hormone (ACTH)–secreting pituitary adenoma. Although the total resection of ectopic adenomas results in rapid and durable remission, persistent Cushing syndrome is often associated with permanently damaging invasive procedures and significantly higher risk of mortality. The authors report the case of a 48-year-old man with ACTH-dependent Cushing syndrome. On the morning befo

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Ominde, Beryl, Joyce Ikubor, Wilson Iju, and Patrick Igbigbi. "Variant septation of the sphenoid sinus in adult Nigerians: CT study." European Journal of Anatomy 26, no. 5 (2022): 559–65. http://dx.doi.org/10.52083/usgl2455.

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Preoperative evaluation of the sphenoid sinus septa is mandatory for safe endoscopic endonasal transsphenoidal surgery. This study aimed at elucidating the variant septation of the sphenoid sinus using computed tomographic images of adult patients. This observational study retrospectively evaluated 336 brain Computed Tomographic images of adult patients seen in a Nigerian Teaching Hospital. The study was approved by the Research Committee of the Hospital. The presence, number, location and attachment of the sphenoid sinus septum were studied and recorded. Statistical Package for Social Science

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Ahmad Qarnain, Aafaq, Mumtaz Ali, Akramullah, Sajid Khan, and Zubair Bashir. "Evaluation of Outcomes and Complications of Sphenoid Wing Meningiomas in Tertiary Care Hospital of KPK." Pakistan Journal Of Neurological Surgery 28, no. 1 (2024): 118–27. http://dx.doi.org/10.36552/pjns.v28i1.909.

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Objective: The objective of this study is to evaluate the outcomes and complications associated with pterional craniotomy and extended pterional craniotomy for the resection of Sphenoid Wing Meningiomas. Material and Methods: A prospective study was conducted on 34 patients at the Neurosurgery department, Prime Teaching Hospital, Pakistan, and Ali Institute of Neurosciences. We examined 34 recently diagnosed cases of sphenoid wing meningiomas, selected through a total enumerative sampling method. Diagnosis of these meningiomas was confirmed by comprehensive neurological assessment and imaging

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Arana, E., C. Diaz, F. F. Latorre, et al. "Primary Intraosseous Meningiomas." Acta Radiologica 37, no. 3P2 (1996): 937–42. http://dx.doi.org/10.1177/02841851960373p299.

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Purpose: A retrospective study was performed to evaluate the clinical, radiological and histological findings of 14 intraosseous meningiomas. Material and Methods: 14 histologically proved intraosseous meningiomas were studied with plain skull film and CT. Pathological records were reviewed. Results: We found 9 calvarial cases and 5 spheno-orbital ones. The most common symptom in the calvarial cases was a lump in the scalp, and in the spheno-orbital lesions it was exophtalmos. Hyperostosis was present in all 5 spheno-orbital cases and in 3 out of the 9 calvarial ones; in the other 6 cases it h

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Worku, Misganaw Gebrie, and Edward Clarke. "Morphometric analysis of the foramen spinosum and variations of its shape, number, and relation to the spine of the sphenoid bone." Translational Research in Anatomy 24 (September 2021): 100124. http://dx.doi.org/10.1016/j.tria.2021.100124.

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Zhurabekova, Gulmira, and Merey Merey. "NEUROIMAGING DATA OF THE STUDY OF THE CHIASMAL-SELLAR REGION STRUCTURES." Ambiance in Life International Scientific Journal in Medicine of Southern Caucasus 06, no. 01 (2021): 6–8. http://dx.doi.org/10.36962/0601202106.

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Background: Sphenoid sinus (SS) is separated by a septum with various position, therefore sizes of two sinus cavities are variable [2]. In addition, sphenoid sinus differs in pneumatization type, ranging from its absence to extensive forms.Knowledge of the linear size and shape of the skull, the structure of the sphenoid sinus and its interconnection with nearby structures will help to avoid complications when performing surgical endoscopic interventions in the chiasmal-sellar region. Currently, the transsphenoid approach is the most optimal in neurosurgery for intracellar and cranial patholog

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Fisher, Sean M., Zachary Borab, Jeffrey A. Fearon, and Rod J. Rohrich. "Isolated Fibrous Dysplasia of the Bilateral Nasal Bones: Complex Management of the Bony Vault." Plastic and Reconstructive Surgery - Global Open 12, no. 4 (2024): e5767. http://dx.doi.org/10.1097/gox.0000000000005767.

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Summary: Fibrous dysplasia is a benign fibro-osseous process affecting the skeletal system, with resulting cystic and fibrous tissue expansion. Craniofacial fibrous dysplasia represents a small subset of monostotic disease, accounting for approximately 10%–25% of all such cases. Involvement of the frontal, temporal, and sphenoid bones has most commonly been described, with a limited number of reported cases citing disease isolated to the nasal bones. The case reported here is differentiated by the degree of expansion of the bilateral nasal bones and the required clinical management of the bony

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Alam, Mohammad Khursheed, Anil Kumar Nagarajappa, Ahmed Ali Alfawzan, et al. "The Spheno-Occipital Synchondrosis and Morphometry of Sella Turcica Association with Different Phenotype Factors Related to Ectopic Eye Tooth/Teeth." Applied Sciences 12, no. 1 (2021): 112. http://dx.doi.org/10.3390/app12010112.

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Objectives: This study investigates the prevalence of Spheno-Occipital Synchondrosis (SOS) and sella turcica morphometry (STM) association with different phenotype factors related to ectopic eye tooth/teeth (EET) using cone beam computed tomography (CBCT) imaging. Methods: This comparative retrospective study analyzed 252 CBCT images. Subjects in the EET group consisted of 197 CBCT images with the phenotype factor in number, i.e., unilateral (13, n = 62; 23, n = 59) or bilateral (1323, n = 76) and matched control (n = 55). SOS and STM were investigated using 3D OnDemand Software. Seven paramet

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LEÃO, MANUELA DOPAZO V., TIAGO P. CARVALHO, ROBERTO E. REIS, and WOLMAR B. WOSIACKI. "A new species of Pseudobunocephalus Friel, 2008 (Siluriformes: Aspredinidae) from the lower Tocantins and Mearim river drainages, North and Northeast of Brazil." Zootaxa 4586, no. 1 (2019): 109. http://dx.doi.org/10.11646/zootaxa.4586.1.5.

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Pseudobunocephalus timbira, new species, is described from streams of the lower Tocantins and the Mearim river drainages, in North and Northeast of Brazil. Pseudobunocephalus timbira can be distinguished from all congeners by having the second hypobranchial and the third basibranchial cartilaginous (vs. ossified). Additionally, it can be dintinguished from P. lundbergi by the following putative apomorphic features within Pseudobunocephalus: posterolateral process of premaxilla present (vs. absent); bony knobs in dorsal lamina of Weberian apparatus absent (vs. present); distal end of posterior

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M.M., Maharramov, Mokrousov M.V., and Proshchalykin M.Yu. "New distributional records of the family Sphecidae (Hymenoptera) in Azerbaijan." Caucasian Entomological Bulletin 16, no. 1 (2020): 43–47. https://doi.org/10.23885/181433262020161-4347.

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Data on 27 species of nine genera of digger wasps of the family Sphecidae collected in Nakhchivan Autonomous Republic of Azerbaijan are presented. Of them, 20 species are recorded for the fauna of Azerbaijan for the first time. This article is based on the material of more than 170 specimens, collected by the authors in July 2018 and June 2019 in 30 localities of the republic. Currently, 258 species of digger wasps (Sphecidae – 27; Crabronidae – 231) are known from this country. It is assumed that the number of sphecid species in Azerbaijan m

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Sano, Noritaka, Hiroyuki Ikeda, Yoshitaka Tsujimoto, et al. "Ruptured fungal mycotic internal carotid artery aneurysm successfully treated with stent-assisted coil embolization: A case report." Surgical Neurology International 13 (September 2, 2022): 392. http://dx.doi.org/10.25259/sni_567_2022.

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Background: Ruptured intracranial fungal mycotic aneurysms have a high mortality rate. It has been reported that the number of opportunistic infections has increased. Here, we report the first case of a patient in which a ruptured fungal carotid artery aneurysm was successfully treated by stent-assisted coil embolization. Case Description: A 76-year-old male receiving dual antiplatelet therapy due to a recent percutaneous transluminal angioplasty presented with blurred vision of the right eye and diplopia. Magnetic resonance imaging revealed a fungal mass in the sphenoid sinus, and the patient

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Dhakal, Ashish, Bikash Lal Shrestha, Monika Pokharel, Samip Shrestha, Subindra Karki, and Krishna Sundar Shrestha. "Computerized Tomography-Based Volumetric Analysis Of The Maxillary, Sphenoid, And Frontal Sinuses: An Observational Study." Journal of Nepal Medical Association 63, no. 281 (2024): 33–36. https://doi.org/10.31729/jnma.8859.

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Introduction: Volumetric analysis of the paranasal sinuses can help evaluate disease extent, treatment, and sinus surgery outcome. This study aims to determine the baseline volumes of frontal, maxillary, and sphenoid sinuses.Methods: An observational cross-sectional study was conducted in a tertiary care center after obtaining ethical approval (Reference number: 264/2021). Computerized Tomography Scan head or Computerized Tomography Scan nose/Paranasal sinus images of patients across all age groups from January to December 2022 were analyzed. Sinus volumes were calculated using Digital Imaging

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Pezas, Theodore, Khurram Khan, and Bruce Richard. "What We Do: Greater Palatine Medializing Foraminal Osteotomy for Repair of the Wide Cleft Palate." Cleft Palate-Craniofacial Journal 56, no. 8 (2019): 1080–82. http://dx.doi.org/10.1177/1055665619829386.

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Wide cleft palates (>15-mm gap) present a number of challenges to the surgeon tasked with their repair ( Bardach, 1999 ). Eliminating the need for secondary surgery due to fistula formation can reduce additional anesthetic and scarring risks and optimize early speech development. Greater palatine foraminal osteotomy is a useful surgical adjunct that allows additional medial movement of oral mucoperiosteal flaps to aid in tension-free closure of the oral layer. We use a technique similar to that described by Seibert in 1995 with a few modifications. Closure of the nasal layer in these wide c

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Listiani, Desi, Ajuk Sapar, and Anthoni Batahan Aritonang. "SINTESIS TIO2-KAOLIN DAN UJI AKTIVITAS FOTOKATALISIS UNTUK ANTIBAKTERI Escherichia Coli DAN Staphylococcus aureus." Indonesian Journal of Pure and Applied Chemistry 2, no. 3 (2019): 130. http://dx.doi.org/10.26418/indonesian.v2i3.36895.

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Synthesis of TiO2-kaolinite has been performed using solgel method with titanium tetraisopropoxide (TTIP) as precursor. Synthesis of TiO2-kaolinite by temperature calcination 450 °C for 2 hours to obtain TiO2-kaolinite anatase and then the antibacterial photocatalysis activity of E. coli and S. aureus was performed. Identification of the characteristics TiO2-kaolinite used XRD, SEM, FTIR, and DR-UV. It was found that TiO2-kaolinite has been anatase phase structure with the particle size is 19-103 nm, and have a spheric morphology. Infrared spectra indicate a specific group in wave number 921 c

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Munjal, Manish, Suneet Sethi, Anurag Chowdhary, et al. "Demographic profile of subjects undergoing sphenoidotomy for sphenoid sinusitis, in a tertiary care centre of Punjab- analysis of 75 subjects." International Journal Of Community Medicine And Public Health 7, no. 12 (2020): 4962. http://dx.doi.org/10.18203/2394-6040.ijcmph20205170.

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Background: The demographic profile of patients with Sphenoiditis undergoing surgical intervention, in the state of Punjab was studied. The emphasis was on the age, gender and clinical presentation in this prospective study.Methods: There were 75 patients of sphenoethmoidal recess pathology with sphenoditis, who were selected from the Rhinology clinics of Otorhinolaryngology and head Neck services of Dayanand Medical College and Hospital Ludhiana , in a period one and a half years (November 2002 to October 2004). All patients were taken up for Functional endoscopic sinus surgery of the sphenoi

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Fomenko, Lyudmila, and Marina Perveneckaya. "STRUCTURAL FEATURES OF THE HEAD SKELETON OF THE ASIAN (WHITE-TAILED) PORCUPINE (HYSTRICIDAE LEVICURA)." Bulletin of KSAU, no. 5 (July 10, 2024): 152–58. http://dx.doi.org/10.36718/1819-4036-2024-5-152-158.

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The purpose of research is to study the structural features of the head skeleton of the Asian (white-tailed) porcupine. The object of the study is the skeleton of the head of an Asian (white-tailed) porcupine at the age of 12 years. To make the porcupine skeleton, a biological method of processing the material was used. The study of the bones was accompanied by measuring their length and width using an electronic caliper with an accuracy of 0.1 mm, describing and photographing. The head skeleton of the Asian (white-tailed) porcupine is divided into cerebral and facial sections, the size of whi

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Thanaviratananich, Sanguansak, Kowit Chaisiwamongkol, Suthee Kraitrakul, and Watcharachai Tangsawad. "The Prevalence of an Onodi Cell in Adult Thai Cadavers." Ear, Nose & Throat Journal 82, no. 3 (2003): 200–204. http://dx.doi.org/10.1177/014556130308200314.

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Endoscopic sinus surgery in patients who have an Onodi cell (sphenoethmoid cell) carries a high risk for optic nerve injury. We meticulously dissected 65 embalmed cadaver adult half-heads and attempted to identify an optic canal bulge in each with a nasal endoscope. Our aims were to determine the prevalence of an Onodi cell in adult Thai cadavers, to ascertain the prevalence of an overriding ethmoid cell, and to measure the length of an overriding ethmoid cell's superior and posterior extensions in relation to the anterior sphenoid wall. Moreover, we attempted to determine the minimum amount o

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Kapadia, Mustafa, Precious Eunice R. Grullo, and Muaaz Tarabichi. "Comparison of short nozzle and long nozzle spray in sinonasal drug delivery: a cadaveric study." Ear, Nose & Throat Journal 98, no. 7 (2019): E97—E103. http://dx.doi.org/10.1177/0145561319846830.

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The aim of this study is to compare the delivery site of topical drugs using the short nozzle and the long nozzle. Fourteen fresh frozen cadaver heads were obtained. All cadaver specimens underwent bilateral endoscopic wide maxillary antrostomy, frontal sinusotomy, and complete sphenoethmoidectomy. The right nasal cavity of each cadaver was sprayed with radiolabeled saline using the short nozzle (short nozzle group), while the left nasal cavity was sprayed using the long nozzle (long nozzle group). The distribution of radioactive saline within the sinus cavities was determined using single-pho

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Ишин, Артем, Artem Ishin, Наталья Перевалова, et al. "First results of registering ionospheric disturbances obtained with SibNet network of GNSS receivers in active space experiments." Solar-Terrestrial Physics 3, no. 4 (2017): 74–82. http://dx.doi.org/10.12737/stp-34201708.

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Global and regional networks of GNSS receivers have been successfully used for geophysical research for many years; the number of continuous GNSS stations in the world is steadily growing. The article presents the first results of the use of a new regional network of GNSS stations (SibNet) in active space experiments. The Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences (ISTP SB RAS) has established this network in the South Baikal region. We describe in detail SibNet, characteristics of receivers in use, parameters of antennas and methods of their insta

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Savka, Ivan G. "FORENSIC MORPHOLOGICAL SIGNS CHARACTERIZING STABILITY OF THE FEMUR, TIBIA AND FIBULA DURING EFFECT OF EXTERNAL DESTRUCTIVE LOAD." Wiadomości Lekarskie 72, no. 2 (2019): 198–200. http://dx.doi.org/10.36740/wlek201902111.

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Introduction: Fractures of the lower limb bones very often become the subject of forensic expertise when experts have to determine the mechanisms of fracture formation, make retrospective restoration of conditions of their occurrence, solve the issues concerning the possibility of their formation under certain conditions. The aim of study is directed to investigation of morphological signs facilitating solidity of the osseous tissue of the lower limb long tubular bones, and therefore, promoting biochemical processes of their destruction in case of external traumatic impact. Materials and metho

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Shinojima, Naoki, Keisuke Harada, Yuji Dekita, et al. "CS-6 A case of poorly differentiated chordoma with systemic metastasis." Neuro-Oncology Advances 3, Supplement_6 (2021): vi28. http://dx.doi.org/10.1093/noajnl/vdab159.108.

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Abstract A case report: The patient was a 32-year-old man with diplopia. He was diagnosed as sphenoid sinusitis on MRI by a local doctor and visited an otolaryngologist. MRI showed extensive extension of neoplastic lesions from the clivus to the sphenoid sinus to the anterior ethmoid sinuses, bilateral cavernous sinuses, and the right medial and lateral pterygoid muscles. The right Lebiere’s lymph node was enlarged and thought to be a metastatic site. Based on the rapid growth and extension of the tumor, the patient was referred to the Department of Otolaryngology at our hospital on suspicion

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Gupta, Sunnia, Angela Swampillai, Lucy Brazil, and Omar Al-Salihi. "RADT-30. RADIATION INDUCED MENINGIOMA IN BACKGROUND OF CHILDHOOD CRANIAL IRRADIATION: A CASE SERIES." Neuro-Oncology 24, Supplement_7 (2022): vii56. http://dx.doi.org/10.1093/neuonc/noac209.220.

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Abstract BACKGROUND Cranial irradiation as part of prophylactic (PCI) or radical treatment for childhood malignancies can be associated with late consequences such as radiotherapy induced meningioma. METHODS We are reporting 5 such patients treated at our institute. RESULTS Case 1: 24y female received PCI for Acute Lymphoblastic Leukemia at the age of 2, and developed right frontal meningioma which was resected and pathology confirmed grade 2 atypical meningioma. It was treated with radiotherapy 60Gy/30fr and 2 year follow up scans remain stable. Case 2: 31y male received PCI as a child, and d

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Slavnov, A. A., D. A. Devyatirikov, I. N. Putalova, A. P. Suslo, A. N. Sapronova, and V. A. Piannikova. "Morphometric Parameters of the Sphenoid Sinus with Different Types of Pneumatization and Nasal Cavity in Mature Men." Journal of Anatomy and Histopathology 12, no. 3 (2023): 79–85. http://dx.doi.org/10.18499/2225-7357-2023-12-3-79-85.

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The aim of the study was to determine the availability of the relationship between the morphometric dimensions of the sphenoid sinus and the nasal cavity in mature men with different types of pneumatization of sinus shpenoidalis.Material and methods. A morphometric study of 25 skull cuts of mature men with a wound type of sinus pneumatization performed in the median plane was carried out. A morphometric template and ImageJ version 1.52u program were used to determine the height and longitudinal dimensions of the sinus, the length of the Zuckerkandl line, the thickness of the sinus walls along

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