Tropical cyclone intensities from satellite microwave data

Radial profiles of mean 1000 mb to 250 mb temperature from the Nimbus 6 scanning microwave spectrometer (SCAMS) were constructed around eight intensifying tropical storms in the western Pacific. Seven storms showed distinct inward temperature gradients required for intensification; the eighth displayed no inward gradient and was decaying 24 hours later. The possibility that satellite data might be used to forecast tropical cyclone turning motion was investigated using estimates obtained from Nimbus 6 SCAMS data tapes of the mean 1000 mb to 250 mb temperature field around eleven tropical storms in 1975. Analysis of these data show that for turning storms, in all but one case, the turn was signaled 24 hours in advance by a significant temperature gradient perpendicular to the storm's path, at a distance of 9 deg to 13 deg in front of the storm. A thresholding technique was applied to the North Central U.S. during the summer to estimate precipitation frequency. excep

Estimating the final spin of a binary black hole coalescence

We present a straightforward approach for estimating the final black hole spin of a binary black hole coalescence with arbitrary initial masses and spins. Making some simple assumptions, we estimate the final angular momentum to be the sum of the individual spins plus the orbital angular momentum of a test particle orbiting at the last stable orbit around a Kerr black hole with a spin parameter of the final black hole. The formula we obtain is able to reproduce with reasonable accuracy the results from available numerical simulations, but, more importantly, it can be used to investigate what configurations might give rise to interesting dynamics. In particular, we discuss scenarios which might give rise to a ``flip'' in the direction of the total angular momentum of the system. By studying the dependence of the final spin upon the mass ratio and initial spins we find that our simple approach suggests that it is not possible to spin-up a black hole to extremal values through merger scenarios irrespective of the mass ratio of the objects involved.Comment: 9 pages, 8 figure

Reach Out! Relevant Youth Evangelism

https://digitalcommons.andrews.edu/books/1198/thumbnail.jp

Focus on Children\u27s Ministry

In researching growing Seventh-day Adventist churches in North America we discovered that the common denominator among these churches is their focus on children’s ministries. In the past, parents brought their children to the church and the Lord. Today, children bring their parents and friends to the church if they enjoy their experience there

Creating Exciting Family Worship

Family Worship is the regular, intentional gathering as a family unit to worship God by reading scripture, praying, singing praise, and finding ways to be involved in ministry and evangelism together. There are four major components to every family worship: “Read – Pray – Sing – Mission.” Every Christian family should have such time daily

Education for Worship in the East Wenatchee Seventh-day Adventist Church

There is no greater challenge than to learn how to worship God, the Creator and Redeemer. God\u27s people must make an effort to search for this truth as it is found in Christ (John 5:39). They must learn how to worship Him, who created and redeemed them through His only Son, for true worship experience will add power to their faith and vitality to Christian practice. One must not only endeavor to acquire more knowledge and to gain increased understanding about the truth of worship, but also to share in a greater worship experience. This project report begins by discussing the theological principles of Christian worship that were the basis of a worship emphasis series consisting of six sermons preached to the congregation of the East Wenatchee Seventh-day Adventist Church with the intention of educating the congregation regarding worship and six of its elements. A questionnaire designed to determine the congregation\u27s attitude towards and understanding of worship and its elements was handed out to the congregation before the worship education series and again after its conclusion. The post-test data seem to suggest that the worship emphasis series has accomplished two things: (1) it has given the East Wenatchee congregation some theological information about Christian worship and its essential elements, and (2) presented the information in such a way that the attitude toward worship has changed and spiritual development has taken place. The worship education appears to have taken place during the implementation period. This observation appears to be substantiated by the results of the post-test questionnaires and the written testimonies submitted by the members. The responses seem to indicate that many of the members have made an intelligent reassessment of Christian worship, have gained a better understanding of it, and are experiencing worship more fully. The worship emphasis series can be planned and implemented by the worship committee and the pastor in any local church. As a result, God\u27s people may grow in grace so that their worship as a redeemed fellowship on the Sabbath may truly be in spirit and truth. God\u27s people will give Him an appropriate response as a worshipping fellowship by dedicating themselves in service to Him, entering into the world to honor and glorify Him