Anterior Skull Base Analysis from Coronal and Reconstructed Computed Tomography: Radio-Anatomical Study

Endoscopic sinus and skull base Surgery has gained significant improvement widely all over the world. A computerized tomography (CT) scan provides a detailed anatomy of the skull base especially the bone framework. This study aims to analyze the fixed anatomical bony landmarks of the anterior skull base through coronal and reconstructed CT in the context of the Nepalese population and guide the surgeon to perform endoscopic sinus and skull base surgery safely. This Prospective study includes 70 Computerized Tomography scans of Paranasal sinuses. The different measurement from nasal floor to skull base was taken in coronal and reformatted sagittal CT scan. Mean, standard deviation, minimum and maximum values were analyzed using descriptive statistics. Student T-test was applied to compare between right and left side. This study includes 75 patients between 18 to 77 years. The measurement from nasal floor to the cribriform plate and ethmoidal roof in right and left side were, mean± SD (47± 4.1, 45.3±4.3, 47.9±5.1, and 49±8.5 mm) respectively. Mean Take off angle at the cribriform plate was 43.9 ±10.9°on right side and 43 ± 9.4° on the left side. The distance from the nasal spine to the skull base (mean ± SD) at nasofrontal recess, bulla ethmoidalis, and the junction of sphenoethmoid levels at right sides were 51.5 ± 4.7, 52.9 ± 4.1, and 61.2 ±4.7 little higher at left side. This study provides a detailed analysis of the anterior skull base in coronal and sagittal CT scans which helps to reduces complications.

Complex Activity and Sensor Potential toward Metal Ions in Environmental Water Samples of N-Phthalimide Azo-Azomethine Dyes

Herein, the spectral and electrochemical characterizations of three different substituted N-phthalimide azo-azomethine (NAA) dyes (L) containing an o-hydroxy group and their NAA-M(II) chelates [M(II): Cu, Ni, Co, Pb] were reported by using UV–Vis and fluorescence spectroscopy and potentiometric and voltamperometric techniques. The pK value of the dyes as well as the stoichiometry and stability of the NAA-metal chelates were studied, and the stoichiometry was found to be mostly 1:2 (ML2) with high complex stability constant values. The sensor activity of N-phthalimide azo-azomethine derivatives toward pH and metal ions has been also investigated and tested for indicator application in acid–base analysis and detection of Cu(II) ions in real samples of surface river water using voltamperometric detection. The results showed that one of the ligands possesses the highest electrochemical response upon binding to copper ions and could be successfully used in the analysis of copper in water at a concentration range of the analyte from 3.7 × 10−7 to 5.0 × 10−6 mol L−1, with analytical characteristics of the method being Sr = 1.5%, LOD = 3.58 µg L−1 and LOQ =11.9 µg L−1

Musical activity in psycho-pedagogical perspective: analysis of works of the beginning of the XXI century

The purpose of the article is to reveal innovative views on the importance of musical activity in the symbiosis of psychological and pedagogical approaches. The methodology consists of the study and analysis of pedagogical, musicological, art history source base, analysis, systematization, and generalization of scientific and methodological sources. The scientific novelty of the work is to study the features of the study of musical activity from a psycho-pedagogical perspective, taking into account the changing socio-cultural environment of the early 21st century. Conclusions. Musical activity in scientific works of the 21st century is studied in the traditional psycho-pedagogical approach but taking into account innovative pedagogical concepts (K. Orff, Z. Kodai, J. Ducklcroze, S. Suzuki) and the introduction of an updated methodology. Among the relevant in the 21st-century methods of teaching music are as follows: alternation of different types of creativity, use of various creative methods, development of unity of motor and musical abilities, improvisation, active musical perception, the combination of collective and individual types of musical activity, participation in artistic and cultural events, communication with artists, the involvement of parents in education.

Scalable Data Fusion with Selection Correction: An Application to Customer Base Analysis

A computationally scalable, statistically efficient aggregate-disaggregate data fusion method that corrects for selection bias is applied to model customer relationship dynamics at a subscription-based firm.

The Role of Time-Varying Contextual Factors in Latent Attrition Models for Customer Base Analysis

Context matters when modeling customer purchases and attrition in noncontractual settings.

Some theoretical issues of assessment in modern stage of foreign language teaching development

Assessment is an essential component of the training system. In teaching a foreign language, control occupies a special place due to the complexity of the subject itself for study and the variety of the developed theoretical base. Analysis of the methodic literature on this issue has shown that many terms, especially foreign ones, are interpreted by researchers in different ways. In order to clarify the concepts, we consider traditional definitions of assessment, as well as related terms: “evaluating” and “evaluation”. Clarified and explained English terms, based on the ambiguity of their translation into Russian. To develop the methodic thinking of teachers, some teaching theories are presented and their connection with assessment is shown. Based on the analysis and comparison of learning theories, an explanation is given for three assessment approaches. The first approach looks at learning control and its advantages and disadvantages. This approach, which offers the idea of “assessment-measurement”, is contrasted with another direction in the theory of control. This direction combines “teaching” approaches to assessment: assessment for training and assessment as training. An explanation of these approaches is given, as well as the principles underlying them. The necessity of applying the above theoretical knowledge for methodically competent teaching of a foreign language is substantiated.

Improvement of tax control in Ukraine on the basis of implementing BEPS plan tools and automatic information exchange

The article is devoted to substantiating the need to develop and strengthening the competencies and capabilities of tax services to identify and stop tax evasion in the global economic space characterized by the use of aggressive tax planning schemes related to the taxation of cross-border companies. The aim of the article is to determine the procedures and consequences of the introduction in Ukraine of the standard of automatic exchange of information for tax purposes, the advantages of which are its potential to curb significant tax evasion offshore. Research methods: methods used in this research goes as following: comparative analysis, systematic analysis, cognitive-analytical, data base analysis etc. It is established that the exchange of information between the tax authorities of different countries is the most important among the international instruments to combat cross-border tax evasion schemes, and the main international tool for cooperation in overcoming the asymmetry of tax information is the introduction of a standard for automatic exchange of information for tax purposes. Emphasis is placed on the parameters set by the CRS standard for the identification and exchange of information and the steps that need to be taken to implement it in Ukraine. Research methods: methods used in this research goes as following: comparative analysis, systematic analysis, cognitive-analytical, data base analysis etc. Author arrives at the conclusion that the dates of establishment of the automatic taxation and financial information exchange system in Ukraine (in accordance with CRS standards) are not being followed sufficiently. In this paper author discusses the importance of systematic and methodological establishment of the automatic taxation and financial information exchange system in Ukraine (in accordance with CRS standards) as well as suggests the methods that would efficiently speed up the process of law enforcement project development in Ukraine as well as other normative acts.