R433 – The Anterior Epitympanum

2008 ◽  
Vol 139 (2_suppl) ◽  
pp. P189-P189
Author(s):  
Alaa A. Abou-Bieh ◽  
Thomas J Haberkamp ◽  
Khalid A Al-Abdulhadi ◽  
Jarah Ali Al-Tubaikh
Keyword(s):  
Eustachian Tube ◽  
Point Of View ◽  
Added Value ◽  
Marked Variation ◽  
Operating Microscope ◽  
Microscopic Anatomy ◽  
Different Types ◽  
Temporal Bones ◽  
Transmastoid Approach ◽  
Main Cavity

Problem Early studies report detailed microscopic anatomy of the anterior epitympanum, yet none describe its anatomy from an endoscopic point of view. Methods Thirty-five temporal bones were dissected, and the anatomic details were studied utilizing an operating microscope and otoendoscopes with 0o, 30o and 70o angles and 2.7 and 3 mm diameters. Results Marked variation in the size and shape of the anterior epitympanum was observed. The recess was found in all of the 35 bones. In 43% of the specimens, the main cavity was above the tensor tympanic fold, it was best endoscopically approached via the posterior transmastoid approach. But in 49% of the specimens, because the recess was divided into two cavities by the tensor tympanic fold, it necessitated both the transmastoid and the transcanal routes to endoscopically approach it. While in 8% of specimens, it was mainly endoscopically approached via the transcanal approach, as the recess was contiguous with the eustachian tube. Conclusion The shape of the anterior epitympanum is influenced by the relation between the cavities above and below the tensor tympanic fold. The incorporation of otoendoscopes helps in more exposure of its different types with less aggressive approaches. Significance Review the added value of intra-operative use of otoendoscopes to approach the different areas of the anterior epitympanic region.

Sinus Tympani Endoscopic Anatomy

2002 ◽  
Vol 127 (3) ◽  
pp. 158-162 ◽  
Author(s):  
Fatthi Abdel Baki ◽  
Mohammed Badr El Dine ◽  
Ibrahim El Saiid ◽  
Moustafa Bakry
Keyword(s):  
Image Processing ◽  
Facial Nerve ◽  
Surgical Approach ◽  
Marked Variation ◽  
Operating Microscope ◽  
Computer Screen ◽  
Endoscopic Anatomy ◽  
Sinus Tympani ◽  
Clinical Interest ◽  
Temporal Bones

OBJECTIVE: The sinus tympani has been the focus of clinical interest because of its tendency to be invaded by cholesteatoma, its visual obscurity, and the lack of a straightforward surgical approach by which it can be addressed. This study was undertaken to describe the microscopic as well as the endoscopic anatomy of the sinus tympani. STUDY DESIGN AND SETTING: Thirty temporal bones harvested from cadavers were dissected using an operating microscope and telescopes with different angles and 2.7- and 4-mm diameters, fitted with a videocamera. Images were transmitted to a computer screen. Precise measurements were made after scaling the distances with the digital image processing. RESULTS: Marked variation in size and shape was the rule. It was found that the sinus tympani is bounded laterally by a constant ledge of bone anterior to the facial nerve. It was deep, extending posterior to the facial nerve in 6 specimens. The telescopes (30° to 70°) enabled the surgeon to see this region clearly because the orifice plane was more or less perpendicular to the axis of the external auditory canal. CONCLUSION: The study emphasizes the importance of removal of this lateral lip of bone to expose the orifice of the sinus tympani. This should be complemented with the use of a 30° endoscope (1.7 mm in canal-up and 4.0 mm in canal-down technique) for better visualization and cleaning of this hidden area.

Decorative motifs on oil lamps from Grimm's 1973 excavations in Alexandria

2019 ◽  
Author(s):  
Heba Abdel Wahed Sayed
Keyword(s):  
Point Of View ◽  
Symbolic Meaning ◽  
Ancient History ◽  
Different Types ◽  
Decorative Motifs ◽  
Egyptian Culture ◽  
Late Roman

A collection of 30 clay oil lamps from Gunther Grimm's excavations in 1973 in the Western necropolis of Alexandria has been classified by Safaa Samir Abu Al Yazid from Tanta University and found to represent 12 different types ranging in time from the Hellenistic to the late Roman periods in Egypt's ancient history. The present paper looks at this collection from the point of view of the symbolic significance of the decorative motifs used in their decoration. These motifs— figural, floral and geometric—had obvious symbolic meaning to their users and signified more than a simple belief in certain deities. They also reflected Roman Egyptian culture.

Analysis of the Most Valued Organization to Work for in Spain, According to Nationality and Location

2019 ◽  
Vol 5 (2) ◽  
pp. 83-99
Author(s):  
Francisco Jesús Ferreiro Seoane ◽  
Manuel Octavio Del Campo Villares
Keyword(s):  
Work Environment ◽  
Talent Management ◽  
Point Of View ◽  
Added Value ◽  
Quantitative Character ◽  
Autonomous Communities ◽  
Professional Performance ◽  
Significant Relationships ◽  
Pearson Correlations ◽  
Selection Of

Background: The objective of this article is to analyse if there are significant relationships between the most valuable companies operating in Spain regarding professional performance, according to nationality and location within their Autonomous Communities or any superior aggrupation. To do that, a sample of 100 companies has been selected. Methods: The methodology followed is based on the selection of the 100 highestvalued companies from the point of view of Human Resources’ policy for the period 2013-2016 and through the measurement of six factors: Talent Management, Retribution, Work environment, CSR, Training and Employees’ perception, and classified by nationality and location. The study was based on 12 hypotheses, using the Unifactorial Variance’s Analysis, Pearson correlations and regressions. One limitation could be the fact that this study refers to a particular period, focusing on Spain and the variables mentioned, based on questionnaires. The added value of this work lies on the newness as it has a quantitative character, and on the fact that most of the hypotheses do not comply. Results and Conclusion: This allows to deny certain beliefs that affirm that European and American companies operating in Spain are more attractive than the Spanish or the Mediterranean ones.

scholarly journals Embodied Energy and Embodied GWP of Windows: A Critical Review

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3788
Author(s):  
Francesco Asdrubali ◽  
Marta Roncone ◽  
Gianluca Grazieschi
Keyword(s):  
Critical Analysis ◽  
Strong Dependence ◽  
Primary Energy ◽  
Point Of View ◽  
Embodied Energy ◽  
Construction Sector ◽  
Industrialized Countries ◽  
Different Types ◽  
Operational Phase ◽  
Operational Impact

The construction sector is one of the most energy-intensive in the industrialized countries. In order to limit climate change emissions throughout the entire life cycle of a building, in addition to reducing energy consumption in the operational phase, attention should also be paid to the embodied energy and CO2 emissions of the building itself. The purpose of this work is to review data on embodied energy and GWP derived from EPDs of different types of windows, to identify the LCA phases, the most impacting materials and processes from an environmental point of view and to perform a critical analysis of the outcomes. The results show a strong dependence on the typology of the frame, with wooden windows having competitive performances: lower average primary energy non-renewable (1123 MJ/FU), higher average primary energy renewable (respectively 817 MJ/FU) and lower global warming potential (54 kgCO2eq/FU). More transparency and standardization in the information conveyed by the program operators is, however, desirable for a better comparability of windows performances. In particular, the inclusion of the operational impact in the EPD is sporadic, but strongly important, since it can be the most impactful phase.

Implementation of a Pipeline Integrity Management System at TIGF (France): The Added Value of the Pipeline Threats and Mitigations Module

2008 ◽  
Author(s):  
Karine Kutrowski ◽  
Rob Bos ◽  
Jean-Re´gis Piccardino ◽  
Marie Pajot
Keyword(s):  
Management System ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Management Plan ◽  
Point Of View ◽  
Added Value ◽  
Specific Information ◽  
Transmission Grid ◽  
Integrity Management ◽  
Corrective Actions

On January 4th 2007 TIGF published the following invitation for tenders: “Development and Provision of a Pipeline Integrity Management System”. The project was awarded to Bureau Veritas (BV), who proposed to meet the requirements of TIGF with the Threats and Mitigations module of the PiMSlider® suite extended with some customized components. The key features of the PiMSlider® suite are: • More than only IT: a real integrity philosophy, • A simple intuitive tool to store, display and update pipeline data, • Intelligent search utilities to locate specific information about the pipeline and its surrounding, • A scalable application, with a potentially unlimited number of users, • Supervision (during and after implementation) by experienced people from the oil and gas industry. This paper first introduces TIGF and the consortium BV – ATP. It explains in a few words the PIMS philosophy captured in the PiMSlider® suite and focuses on the added value of the pipeline Threats and Mitigations module. Using this module allows the integrity analyst to: • Prioritize pipeline segments for integrity surveillance purposes, • Determine most effective corrective actions, • Assess the benefits of corrective actions by means of what-if scenarios, • Produce a qualitative threats assessment for further use in the integrity management plan, • Optimize integrity aspects from a design, maintenance and operational point of view, • Investigate the influence of different design criteria for pipeline segments. To conclude, TIGF presents the benefits of the tool for their Integrity Management department and for planning inspection and for better knowledge of their gas transmission grid.

The combination of different open innovations: a longitudinal case study

2019 ◽  
Vol 13 (2) ◽  
pp. 342-362
Author(s):  
Xiaodong Yuan ◽  
Xiaotao Li
Keyword(s):  
New Product Development ◽  
Open Innovation ◽  
Point Of View ◽  
Longitudinal Case Study ◽  
Key Factors ◽  
Content Type ◽  
Strategic Direction ◽  
Different Types ◽  
Innovation Capacity

Purpose The purpose of this paper is to explore how an organization can combine different types of open innovations and what are the key factors that may influence the combination of different open innovations. Design/methodology/approach The basic methodology of this paper is the longitudinal inductive analysis within the conceptual framework of the open innovation proposed by Dahlander and Gann (2010). In this case study of Xiaomi Tech Inc., the open innovation combination is investigated through examining 25 new products created between August 2010 and December 2016 in terms of four general types: acquiring, sourcing, selling and revealing open innovation. Findings In practice, the combination of different types of open innovations can be realized. A firm may combine different open innovations at three levels: a single product level, a related product cluster level and a company level. In addition, different open innovations can be combined in diverse modes. The purpose of combining different types of open innovations is to overcome the disadvantages of each type and to exploit the advantages of all different types. Many factors may affect a firm’s option of how to combine open innovations. At different development stages, a firm may make and implement corresponding strategic direction based on its innovation capacity and internal resource. For a given strategy, the firm needs to create profits and manage intellectual property in the implementation of open innovations. These factors are interacted each other, rather than isolated. Originality/value The findings of this paper are helpful for better understanding how and why an organization can combine different types of open innovations. From a managerial point of view, an organization may combine different types of open innovations to leverage advantages and avoid disadvantages of each certain type of open innovation. An appropriate combination of different open innovations can effectively improve new product development.

scholarly journals Cell Bioprinting: The 3D-Bioplotter™ Case

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 4005 ◽  
Author(s):  
Angelats Lobo ◽  
Ginestra
Keyword(s):  
3D Structure ◽  
Three Dimensional ◽  
Petri Dish ◽  
Two Dimensions ◽  
Point Of View ◽  
Lack Of Information ◽  
Synthetic Materials ◽  
Different Types ◽  
Available Information ◽  
User Friendly

The classic cell culture involves the use of support in two dimensions, such as a well plate or a Petri dish, that allows the culture of different types of cells. However, this technique does not mimic the natural microenvironment where the cells are exposed to. To solve that, three-dimensional bioprinting techniques were implemented, which involves the use of biopolymers and/or synthetic materials and cells. Because of a lack of information between data sources, the objective of this review paper is, to sum up, all the available information on the topic of bioprinting and to help researchers with the problematics with 3D bioprinters, such as the 3D-Bioplotter™. The 3D-Bioplotter™ has been used in the pre-clinical field since 2000 and could allow the printing of more than one material at the same time, and therefore to increase the complexity of the 3D structure manufactured. It is also very precise with maximum flexibility and a user-friendly and stable software that allows the optimization of the bioprinting process on the technological point of view. Different applications have resulted from the research on this field, mainly focused on regenerative medicine, but the lack of information and/or the possible misunderstandings between papers makes the reproducibility of the tests difficult. Nowadays, the 3D Bioprinting is evolving into another technology called 4D Bioprinting, which promises to be the next step in the bioprinting field and might promote great applications in the future.

XXVIII.—The Arrangement of Fibre Follicles in some Mammals, with special reference tothe Ovidæ

1939 ◽  
Vol 59 (3) ◽  
pp. 763-771 ◽  
Author(s):  
J. E. Duerden
Keyword(s):  
Special Reference ◽  
Point Of View ◽  
Research Association ◽  
General Development ◽  
Initial Form ◽  
Genetic Unit ◽  
Different Types

At the time of his death Dr Duerden was contemplating the preparation of a paper of this nature, and it is felt by Mrs Duerden that had he been able to express his wishes in this connection he would appreciate a record of the conclusions made by him. No one realised more than Dr Duerden himself the gaps which are still present in our knowledge and interpretation of the grouping of follicles and fibres in the mammalia, and this work is certainly not meant to be taken as representing Dr Duerden's final view or those of his colleagues at the Wool Industries Research Association. In view of the unique value of much of the material the present notes are intended, therefore, to form a basis and reference, firstly, for workers engaged in the general development of any mammalian coat from a morphogenic and phylogenetic point of view, and secondly, for those interested particularly in factors concerned in the formation of different types of fleeces in sheep. The conception of the follicle bundle as a discrete and basic genetic unit largely determining the initial form of the wool staple is of the highest importance in studies on the inheritance and developmentof fleece characters.

scholarly journals Landscape Ecology in Mexico: Evolution, Research, Education and Future (Selected Theoretical and Meta-Scientific Aspects)

2021 ◽  
Vol 14 (2) ◽  
pp. 82-114
Author(s):  
Vladimír Kremsa ◽  
Florin Žigrai
Keyword(s):  
Landscape Ecology ◽  
Future Development ◽  
Point Of View ◽  
Mexican Literature ◽  
Added Value ◽  
Research Education ◽  
Didactic Knowledge ◽  
Spatial Level ◽  
Theoretical Application ◽  
Landscape Ecological

Abstract Context:The impulse to write this contribution was the effort of co-authors to bring the European landscape ecologist closer to the development, research & didactic approaches and possible future development of landscape ecology in Mexico from the theoretical, metascientific and applied point of view. Purpose: The purpose of the metascientific approach, in this case meta-landscape ecological approach, is to increase the degree of generalization of existing empirical-methodological, theoretical-application and didactic knowledge and results of landscape-ecological research, so that generally valid landscapeecological regularities and principles can be determined The aim was to acquire new generalizing and holistic qualities and perspectives in the field of landscape ecology in Mexico at this level. Methods: The two-step methodical procedure was elaborated, using metascientifically oriented landscape ecological and ecological Mexican literature, complemented by our studies and personal experience. Results: In this way, new knowledge, representing the added value and meaning of landscape ecologicalevolution, research, education and future development in Mexico was gained. It will serve also to Mexican landscap ecologists. Conclusiones: Mexican landscape ecology, lying at the intersection of European and American landscape ecology, can be described as integrative, idiographic-nomothetic at the spatial level of the landscape in the contact zone of European and American research approaches and principles.

scholarly journals A Comparative Analytical Study Of Shukra Dosha With Semen Analysis

2021 ◽  
Vol 9 (02) ◽  
Author(s):  
Shivanand F Kawane
Keyword(s):  
Comparative Research ◽  
Analytical Study ◽  
Research Study ◽  
Semen Analysis ◽  
Medical Science ◽  
Modern Science ◽  
Point Of View ◽  
Laboratory Examination ◽  
Different Types ◽  
Clinical Conditions

As we know Shukra dhatu is a most essential end product of the rest of all 6 dhatus of sharira. So, an analytical comparative research study has been made on infertility(bandhatva) patients. In this study, we explain tenets of shukra dhatu and different types of shukra doshas according to Acharya Charaka and Sushruta. According to doshas 8 types of Shukra doshas explaind by acharya and 9 types of semen abnormality by modern science. An attempt has been made to correlate these shukra doshas with an abnormality of semen according to modern medical science, on the basis of clinical features, physical appearance, and laboratory examination of semen. For the study 20 patient suffering from any kind of infertility has been selected from O.P.D. of Shalya Tantra department of Arogyashala rugnalaya, Nashik. On observation, the result showed out of 20 patients , 10 patients suffering from vatapittaj, 6 from shukra kshaya, 2 from vataj and 2 from pittaj shukra dosha according to ayurvedic point of view. Simultaneously we correlate it with different clinical conditions of semen and we found Out of 20 patients, 8 suffering from Oligoasthenospermia, 6 from Oligospermia, 2 from Asthenozoospermia, 2 from Tetratazospermia, 2 from Infective semen.  

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