Physical Sciences and Engineering

This article was developed in order to model the integration of computer systems, GeoGebra and MS-Excel, in the teaching-learning process of Analytical Geometry at the Higher Institute of Educational Sciences in Cabinda, in order to reduce the difficulties that appear as, Lack of mastery of the basic concepts of Analytical Geometry, little motivation of students, limited understanding of the concepts of vectors, equations of lines, their representations and graphical interpretations in the plane and space, conic sections, quadric surfaces, poor preparation in the use of software mathematici

Solar energy is the radiative energy that comes from the sun. Solar radiation is electromagnetic in nature and its spectrum cover the ultraviolet (UV) through the visible (VIS) to the infrared (IR) part of the electromagnetic spectrum. The data used in this study was a 12 years average solar radiation data between year 2009 and 2021.

Naphthalimide has been widely used in probe research because of its unique structure. Therefore, using naphthalimide as matrix, a compound P was obtained by the reaction of pyridine-2-formaldehyde with naphthalimide derivative. Among the tested metal ions, the addition of Hg2+ to the solution of P in ethanol quenched the fluorescence of P at 525 nm, and a linear relationship between fluorescent intensity tothe concentration of Hg2+ in the range of 2.0×10-6-1.6×10-5 M was observed.

Climate change impact had given rise to incessant flooding exacerbated by high tidal fluctuations, sea level rise and its accompanying negative impacts such as land degradation and seawater incursion into freshwater sources. Hence, the need to assess the hydrochemistry and anthropogenic pollutants in water, sediment and representative fish samples of Aiyetoro coastal waters.

Introduction: A pseudoarthrosis is established after a minimum of nine months after the trauma without progressive visible signs of consolidation for three months1.

Environment is an un avoidable part of human life. The are Vedas gives various references in the environmental protection, ecological balance, weather cycles, rainfall phenomena, hydrologic cycle, etc. The protection of the environment was understood to be closely related to the protection of the heavens and earth. Many of the Ṛgvedic hymns therefore vividly describe the Heaven and Earth together.

Introducción. La relación entre las lesiones de abfracción y el estrés laboral constituyen un importante padecimiento en la actualidad en el personal militar con bruxismo, que participa en operaciones de alto impacto. Métodos. 124 infantes demarinase sometieron a una autoevaluación para reconocer si tenían bruxismo, grado de abfracción, Estrés Percibido (PSS) y Bruxismo Autoinformado (CBA), estas variables se analizaron estadísticamente con el programa PSPP. Resultados: El 73% de la muestra refirió tener bruxismo. El 35.5% de la muestra refirió abfracción severa, 26.6% abfracción moderada.

Introducción: La regulación de la temperatura es vital para la supervivencia y estabilidad del recien nacido (RN), su cuidado y control por parte del personal de enfermería permite tener control del ambiente, del traslado y de las intervenciones de enfermería, por ello, se ha creado el código Romeo- Noviembre en la Secretaría Armada de México. Objetivo general: Identificar las intervenciones de enfermería en el RN Sano durante el código Romeo - Noviembre, en el mantenimiento de la termorregulación e identificar factores de riesgo que favorezcan la aparición de complicaciones.

The old saying “Excellence is the gradual result of always striving to do better……. The noblest search is the search for excellence.” – An integrated approach to achieve continuous improvement and reach towards excellence in Utility Boiler Operation. This paper highlights the case study carried out regarding the successful trial run of the Flue Gas Recirculation of the Utility Boiler of Co-generation plant of the Numaligarh Refinery Limited, Golaghat, Assam. This fan could not be put into service since commissioning of the boiler.

Burns are skin injuries caused by contact with hot bodies. This contact triggers lesion in skin receptors characterized by denervation, development of hyperalgesia and disorganized depolarization, depending on the extent and depth of the burn, the pain may be of greater or lesser intensity. 100% of burn patients report pain at some point during their hospitalization, either from the moment of their injury and / or during some of the treatment phases, which can be divided as follows.