Journal of African Christian Biography: v. 1, no. 7

A publication of the Dictionary of African Christian Biography with U.S. offices located at the Center for Global Christianity and Mission at Boston University. This issue focuses on: 1. Rainisoalambo, Ravelonjanahary, and Volahavana Germaine (Nenilava): Revival Leaders of Madagascar. 2. Rainisoalambo. 3. Ravelonjanahary. 4. Volahavana Germaine (Nenilava). 5. Recent Print and Digital Resourcews Related to Christianity in Africa

Journal of African Christian Biography: v. 5, no. 2

A publication of the Dictionary of African Christian Biography with U.S. offices located at the Center for Global Christianity and Mission at Boston University. This issue focuses on: Women / Bilingual (French): 1. Biography of Émilienne Mboungou-Mouyabi (née Niangui Loubota), Congolese woman pastor, in ENGLISH and in FRENCH; 2. "Recovering the Lives of African Women Leaders in South Africa: The Case of Nokutela Dube" By Heather Hughes, chapter from African Christian Biography: Stories, Lives and Challenges, (D. L. Robert, editor); 3. "Notes on the Life History of the Reverend Canon Professor Emeritus John Samuel Pobee (1937 to 2020)"" by Casely Essamuah.; and, 4. "Theological Publishing and the Future of Christianity in Africa: African Theological Network Press" by Kyama Mugambi. 5. Book Notes, by Beth Restrick

Journal of African Christian Biography: v. 4, no. 2

A publication of the Dictionary of African Christian Biography with U.S. offices located at the Center for Global Christianity and Mission at Boston University. This issue focuses on: 1. Tributes to Lamin Sanneh by friends, family, colleagues, scholars, a Bible translator, and an editor. 2. Biographies by Lamin Sanneh in the DACB. 3. A selected bibliography by Lamin Sanneh, compiled by B. Restrick. 4. Book Notes, compiled by B. Restric

Original biographies from the Dictionary of African Christian Biography

A publication of the Dictionary of African Christian Biography with U.S. offices located at the Center for Global Christianity and Mission at Boston University. The editors are pleased to offer the first annual cumulative volume of the Journal of African Christian Biography, the monthly scholarly publication that was launched in June of 2016. Since then, the life stories of twelve individuals who played vital roles in and through their faith communities have been published online as free downloads. But it is important that a selection of DACB stories be more readily available to those without access to the internet. As I mentioned in the fall 2016 newsletter of the DACB, each issue of the journal is available in its e-journal, on-line version, where it is configured either as A4 or 8.5 x 11 format printable as booklets, ready for local printing and binding or stapling. Our intention is to make it easy for academics and church leaders in various parts of Africa to make print copies of the journal available to their students, colleagues or church members. And so it is with this cumulative volume.This issue focuses on: 1. "Walatta Petros and Hakalla Amale, Pious Women of Ethiopia," with commentary by Dr. Jonathan Bonk, Project Director. 2. Walatta Petros. 3. Hakalla Amale. 4. Bishop Josiah Kibira of Tanzania, Ecumenical Statesman. 5. Josiah Mutabuzi Isaya Kibira. 6. Josiah Kibira. 7. David Lonkibiri Windibiziri. 8. Abiodun Babatunde Lawrence. 9. Dominic Ignatius Ekandem. 10. William Wadé Harris, Prophet-Evangelist of West Africa: His Life, Message, Praxis, Heritage, and Legacy. 11. William Wadé Harris. 12. Michael Timneng and Jeremiah Chi Kangsen: Christianity Beyond the Missionary Presence in Cameroon. 13. Michael Timneng. 14. Jeremiah Chi Kangsen. 15. Rainisoalambo, Ravelonjanahary, and Volahavana Germaine (Nenilava): Revival Leaders of Madagascar. 16. Rainisoalambo. 17. Ravelonjanahary. 18. Volahavana Germaine (Nenilava). 19. Recent Print and Digital Resourcews Related to Christianity in Africa

Journal of African Christian Biography: v. 5, no. 3

A publication of the Dictionary of African Christian Biography with U.S. offices located at the Center for Global Christianity and Mission at Boston University. This issue focuses on: 1. "Tribute: Legendary Pioneer African Theologian Charles Nyamiti" by Francis Anekwe Oborji; 2. "'Jesus! Say It Once Again and the Matter Is Settled': The Life and Legacy of Oral Theologian Madam Afua Kuma of Ghana (1908-1987)" by Sara J. Fretheim; 3. Interview of Dr. Emmanuel Evans-Anfom by Dr. Esther Ecolatse; 4. Interview of Cardinal Christian Wiyghan Tumi by Prof. Paul Nkwi; 5. Remembering Paul Dayhoff; 6. Book Notes, by Beth Restrick

Journal of African Christian Biography: v. 6, no. 4

A publication of the Dictionary of African Christian Biography with U.S. offices located at the Center for Global Christianity and Mission at Boston University. This issue focuses on: Tributes to Andrew Walls and Benedict Ssettuuma (Uganda); Samuel T. O. Akande (Nigeria). This issue of the Journal of African Christian Biography honors the memory of "Prof." Andrew Finlay Walls and Fr. Benedict Ssettuuma, Jr. It also celebrates the contribution of Dr. Michael Adeleke Ogunewu to the work of the DACB both as an author and a mentor-teacher. One of his biographies, that of Samuel T. O. Akande, is included. The issue also includes a serialized chapter from African Christian Biography by Roger Levine and a new section, "Teaching with the DACB," featuring the reflections of a North American student on what the DACB has taught her

Search for Tensor, Vector, and Scalar Polarizations in the Stochastic Gravitational-Wave Background

The detection of gravitational waves with Advanced LIGO and Advanced Virgo has enabled novel tests of general relativity, including direct study of the polarization of gravitational waves. While general relativity allows for only two tensor gravitational-wave polarizations, general metric theories can additionally predict two vector and two scalar polarizations. The polarization of gravitational waves is encoded in the spectral shape of the stochastic gravitational-wave background, formed by the superposition of cosmological and individually unresolved astrophysical sources. Using data recorded by Advanced LIGO during its first observing run, we search for a stochastic background of generically polarized gravitational waves. We find no evidence for a background of any polarization, and place the first direct bounds on the contributions of vector and scalar polarizations to the stochastic background. Under log-uniform priors for the energy in each polarization, we limit the energy densities of tensor, vector, and scalar modes at 95% credibility to Ω0T<5.58×10-8, Ω0V<6.35×10-8, and Ω0S<1.08×10-7 at a reference frequency f0=25 Hz. © 2018 American Physical Society

All-sky search for long-duration gravitational wave transients with initial LIGO

We present the results of a search for long-duration gravitational wave transients in two sets of data collected by the LIGO Hanford and LIGO Livingston detectors between November 5, 2005 and September 30, 2007, and July 7, 2009 and October 20, 2010, with a total observational time of 283.0 days and 132.9 days, respectively. The search targets gravitational wave transients of duration 10-500 s in a frequency band of 40-1000 Hz, with minimal assumptions about the signal waveform, polarization, source direction, or time of occurrence. All candidate triggers were consistent with the expected background; as a result we set 90% confidence upper limits on the rate of long-duration gravitational wave transients for different types of gravitational wave signals. For signals from black hole accretion disk instabilities, we set upper limits on the source rate density between 3.4×10-5 and 9.4×10-4 Mpc-3 yr-1 at 90% confidence. These are the first results from an all-sky search for unmodeled long-duration transient gravitational waves. © 2016 American Physical Society

Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

We present results from a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wandering. This search improves on previous HMM-based searches of LIGO data by using an improved frequency domain matched filter, the J-statistic, and by analyzing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=3.47×10-25 when marginalizing over source inclination angle. This is the most sensitive search for Scorpius X-1, to date, that is specifically designed to be robust in the presence of spin wandering. © 2019 American Physical Society

All-sky search for long-duration gravitational wave transients with initial LIGO

We present the results of a search for long-duration gravitational wave transients in two sets of data collected by the LIGO Hanford and LIGO Livingston detectors between November 5, 2005 and September 30, 2007, and July 7, 2009 and October 20, 2010, with a total observational time of 283.0 days and 132.9 days, respectively. The search targets gravitational wave transients of duration 10-500 s in a frequency band of 40-1000 Hz, with minimal assumptions about the signal waveform, polarization, source direction, or time of occurrence. All candidate triggers were consistent with the expected background; as a result we set 90% confidence upper limits on the rate of long-duration gravitational wave transients for different types of gravitational wave signals. For signals from black hole accretion disk instabilities, we set upper limits on the source rate density between 3.4×10-5 and 9.4×10-4 Mpc-3 yr-1 at 90% confidence. These are the first results from an all-sky search for unmodeled long-duration transient gravitational waves. © 2016 American Physical Society