SMIS: A Stepwise Multiple Integration Solver Using a CAS

Multiple Integration is a very important topic in different applications in Engineering and other Sciences. Using numerical software to get an approximation to the solution is a normal procedure. Another approach is working in an algebraic form to obtain an exact solution or to get general solutions depending on different parameters. Computer Algebra Systems (CAS) are needed for this last approach. In this paper, we introduce SMIS, a new stepwise solver for multiple integration developed in a CAS. The two main objectives of SMIS are: (1) to increase the capabilities of CAS to help the user to deal with this topic and (2) to be used in Math Education providing an important tool for helping with the teaching and learning process of this topic. SMIS can provide just the final solution or an optional stepwise solution (even including some theoretical comments). The optional stepwise solutions provided by SMIS are of great help for (2). Although SMIS has been developed in the specific CAS Derive, since the code is provided, it can be easily migrated to any CAS which deals with integrals and text management that allow us to display comments for intermediate steps.

ARTIFICIAL INSEMINATION OF PIGS IN NIGERIA

The beneficial effects of the use of Al and the stage of development in pigs in Nigeria were reviewed. A method for the training of the boars to mount an artificial dummy sow for the collection of semen for an AI programme has been modified for the Nigerian situation was adopted and perfected for this purpose. The normal procedure for the evaluation of semen samples have been used as one of the various methods for the selection of desirable sires for an AI programme

http://habibiaislamicus.com/index.php/hirj/article/view/136

Abrogation is the basic dispute between Islam and Judaism. Jewish's point of view is that it is impossible to be abrogated the word of God. While Islamic resources claim it as a normal procedure of sharia. Jewish think that it's revealed in Torah that word of God can't be changed. While there are many quotes which we have quoted in this essay from Torah and Tanakh which clearly shows word of God was changed. Qur'an claims that it is a timely period of order which after its time has ended. And whatever new order replaces the previous order it's going to be whether better than previous order or same as previous order. When abrogation is a normal work and it has always happened new order replaces previous order. Same happens in sharia. Judaism was previous sharia which has been changed with Islam which is a better way of fulfilling the commandments of God.

Pool Testing for COVID-19: Suitable Splitting Procedure and Pool Size for India

Introduction: The COVID-19 has emerged as a global pandemic for public health due to large scale outbreak, therefore there is an urgent need to detect the infected cases quickly and isolate them in order to suppress the further spread of the disease. This study tries to identify a suitable pool testing method and algorithm for COVID-19. Methods: This study tries to derive a general equation for the number of tests required for a pooled sample to detect every infected individual in the specific pool. The gain in pool testing over normal procedure is quantified by the percentage of tests required compared to individual testing. Results: The percentage of tests required by the pool testing strategy varies according to the different splitting procedures, the size of the pooled sample, and the probability of an individual being infected in the population. If the probability of infection is 0.05, then for a pool size of 32, only 14 tests, are sufficient to detect every infected individual. Discussion: The number of tests required to detect infected individuals by the pooling method is much lower than individual testing. This may help us in increasing our testing capacity for COVID-19 by testing a large number of individuals in less time with limited resources.

Time Headway as Indices of Traffic Congestion

Urban mobility problem in Nigeria is on the increase, due to rapid growth in traffic that is not matched with the existing transport infrastructure, resulting in traffic congestion. Headway, a measure of level of service of a roadway, could be instructive in addressing this problem, hence this study. Headway, traffic flow and travel speed were collected for morning and evening peak periods for three consecutive weeks for two selected sections of a road in Ile-Ife, Osun state, using normal procedure. The obtained headway data were subjected to statistical analysis. Headway models were developed using regression analysis and the developed models were evaluated using Adjusted Coefficient of determination (R2). The results showed that the traffic along the road was heterogeneous. The maximum safe speed (85th percentile speed) was 31.20 km/hr, while the minimum allowable speed (15th percentile speed) was 28.50 km/hr. The ratio of flow to capacity (v/c) of the road was 0.65 and thus characterised to operate at level of service C. The headway models were h =0.001n2 -0.418n2 + 35.401, h = 0.002n2 – 0.569n + 42.122 , R-square values of 0.942 and 0.928 and minimum headway values of 5.35 sec. and 5.52 sec. For sections one and two respectively. The road is therefore prone to congestion.

Flipped Classroom: Aplicación práctica empleando Lessons en las prácticas de laboratorio de una asignatura de Ingeniería = Flipped Classroom: practical application using Lessons in lab practice for an Engineering subject.

La metodología de enseñanza-aprendizaje Flipped-classroom se presenta como una metodología activa en la que se invierte el orden de aprendizaje, de este modo los estudiantes visionan video sesiones o poliformats en línea de los conceptos que se trabajan durante la sesión presencial. Este planteamiento de “invertir” con respecto a la clase tradicional ha sido aplicado a las prácticas de laboratorio de la asignatura de Expresión Gráfica en el Grado en Ingeniería en Tecnologías Industriales en el curso 2018-19 de la Universitat Politècnica de València. La clase inversa se organizó en sesiones semanales con visionado de videos antes y después de clase y resolución de ejercicios durante y después de clase, detallando el procedimiento seguido en cada sesión presencial. Todo ello gestionado desde la aplicación Lessons.La metodología flipped-classroom nos ha permitido aumentar la motivación de los alumnos, dilucidar y contrastar la percepción de los alumnos en relación al método de aprendizaje tradicional, favorecer el autoprendizaje y el aprendizaje colaborativo en el aula entre alumnos, así como mejorar la comunicación entre alumno y profesor. Por lo que respecta a la evaluación se aprecia una mejora en las calificaciones, así como una valoración positiva a la implementación de la clase inversa.AbstractThe Flipped Classroom teaching method is presented as an active method in which the normal procedure is inverted. The students watch video sessions or polyformats in line with the concepts taught in the normal class. This inverted approach with respect to the traditional class was applied to lab practice sessions in the subject of Graphic Expression as part of the Industrial Technologies Engineering Degree course at the Universitat Politècnica de València in the year 2018-19. The flipped classroom took place in weekly sessions with video sessions before and after, while problems were set to be solved during and after the class. The procedure was followed up later in in-class sessions. Everything was controlled by the Lessons app.This method was seen to increase students’ motivation and clarify their perceptions to a greater degree than the traditional teaching method, while encouraging self-learning and collaborative learning among the class members and improving student-lecturer communications. Evaluation grades were found to increase, and the Flipped Classroom technique was given the general approval of both students and lecturers.

Preference mapping of different varieties of garlic (Allium sativum)

In this work we evaluated different varieties of garlic. All varieties of garlic are rated from one harvest year. Compared samples were different in shape, taste, aroma and characteristics, which were likely to impact on consumer choice and deciding on purchases garlic. Selected indicators were part of internal sensory evaluations, which were evaluated by experts in the sensory laboratory. External part of the preference mapping was conducted among consumers relying on different varieties of garlic under their consumption. Using the internal part of the preferential mapping we summarize randomly selected characteristics within the textural properties and characteristics of taste in which we consider the possible impact on consumer´s choice. In the sensory evaluation assessors used 9 point scale to evaluate 15 selected properties across the texture, taste and aroma on 10 selected varieties according to the degree of preference. Garlic odour and textural properties were evaluated by the normal procedure, though the taste because of intense lingering aftertaste of has been evaluated in a prepared mixture after cooking. For external evaluation, we designed a questionnaire in which consumers can express their preference for individual samples based on photo and variety characteristics, using a hedonic scale from 1 to 9. Obtained data from sensory evaluation and a questionnaire survey were evaluated using statistical software XLSTAT. Preferential map summarise results from internal and external evaluation. We identified characteristics affecting the degree of consumer preferences according to the visualization of our results.

Siddhast Technique: a new vegetative multiplication and water conservative technique for Jatropha curcas

Energy security is one of the prime concerns of any developing/developed nation and India ranks sixth in the world in terms of energy demand. The Indian economy is expected to grow at a rate of over 6 per cent per annum. The petroleum imports are expected to rise to 166 MT by 2019 and 622 MT by 2047, hence there is a growing need for energy security. Jatropha curcas has the potential to become a significant source of renewable energy if improved varieties are developed which can achieve its potential in terms of oil yield per hectare in marginal land. For vegetative multiplication, we have successfully carried out air layering in Jatropha curcas through siddhast technique, where a stem is induced to form roots using Rooter Strand while branch is still intact on the parent plant. Virtually no extra water is required to be given to the parent tree to produce a rooted plant. Here, we examined the competency of eight Rooter Strands vis-à-vis two conventional techniques of air layering i.e. tourniquet and gootee. Results showed that time for root initiation did not vary with treatments. In branches tied with Rooter Strand rooting started in minimum 3 weeks; the average root initiation period with Rooter strand was 4.56-6.66 weeks of installation. However, both conventional techniques T9 and T10 required 8.05 weeks and 6.40 weeks, respectively, to start root initiation. Significantly better rooting observed as compared with tourniquet technique and highest 100 per cent rooting was recorded in Rooter Strand-2, 31 and 41 along with control. Significant difference also observed among all the treatments representing Rooter Strand showed usually 83 per cent or higher for survival percent. This technique is very easy and does not require much skill. This technique has the advantages of air layering i.e. less need for physical inputs (water, electricity, infrastructure, etc). It reduces water consumption up to 90 per cent and electricity 100 per cent as compared to tissue culture. Thus, this technique is very conservative from cuttings and much faster than normal procedure of air layering for producing true-to-type plant material and can be adopted for multiplication of superior varieties of this species for their large-scale deployment for biodiesel production to ensure sustainable development with least water requirement.

US budget poised to end with continuing resolutions

Significance The budgeting process is where the government determines its fiscal priorities for the following year. However, gridlock in Congress and the deep divisions between the parties has made normal procedure a rare occurrence, and appears set to do so for the fiscal year 2016 federal budget. Impacts Military spending will likely trump deficit reduction within the Republican party. Areas of likely agreement include increased funding for 'superbug' resistance. Healthcare funding would require quick congressional action in the event of an adverse Supreme Court decision.