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Journal articles on the topic 'Kahra block'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Ashutosh, Singh, Kumar Pandey Amit, and Singh Umesh. "A study on soil fertility status of adopted model village in Rahuamani, Kahra block of Saharsa district in Bihar." World Journal of Advanced Research and Reviews 14, no. 2 (2022): 167–73. https://doi.org/10.5281/zenodo.7186291.

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Soil fertility assessment in a region is the most basic decision-making tool for sustainable soil nutrient management. A soil fertility status inventory work was carried out in adopted model village, Rahuamani of Kahra block in Saharsa district. One hundred soil samples were randomely collected based on the handled GPS location. Results showed that 91% samples were found in neutral reaction and all the samples fall under normal and safe category of electrical conductivity. Sixty-five per cent soil samples fall under lows organic carbon content and 35% samples were medium in organic carbon cont

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2

Ashutosh Singh, Amit Kumar Pandey, and Umesh Singh. "A study on soil fertility status of adopted model village in Rahuamani, Kahra block of Saharsa district in Bihar." World Journal of Advanced Research and Reviews 14, no. 2 (2022): 167–73. http://dx.doi.org/10.30574/wjarr.2022.14.2.0428.

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Soil fertility assessment in a region is the most basic decision-making tool for sustainable soil nutrient management. A soil fertility status inventory work was carried out in adopted model village, Rahuamani of Kahra block in Saharsa district. One hundred soil samples were randomely collected based on the handled GPS location. Results showed that 91% samples were found in neutral reaction and all the samples fall under normal and safe category of electrical conductivity. Sixty-five per cent soil samples fall under lows organic carbon content and 35% samples were medium in organic carbon cont

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3

Bacot, Hunter. "The Black Tax." Public Finance Journal 1, no. 2 (2024): 159–61. http://dx.doi.org/10.59469/pfj.2024.38.

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4

Nataraj, Geethanjali. "Book review: Kamal Nayan Kabra, The Black Economy in India: Transition to the Grey Political Economy." Indian Journal of Public Administration 66, no. 1 (2020): 135–37. http://dx.doi.org/10.1177/0019556120907527.

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5

Huang, Qing-Guo, Chen Yuan, Zu-Cheng Chen, and Lang Liu. "GW230529_181500: a potential primordial binary black hole merger in the mass gap." Journal of Cosmology and Astroparticle Physics 2024, no. 08 (2024): 030. http://dx.doi.org/10.1088/1475-7516/2024/08/030.

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Abstract During the fourth observing run of the LIGO-Virgo-KAGRA detector network, the LIGO Livingston observatory detected a coalescing compact binary, GW230529_181500, with component masses of 2.5–4.5 M ⊙ and 1.2–2.0 M ⊙ at the 90% credible level. The gravitational-wave data alone is insufficient to determine whether the components are neutron stars or black holes. In this paper, we propose that GW230529_181500 originated from the merger of two primordial black holes (PBHs). We estimate a merger rate of 5.0+47.0 -4.9 Gpc-3 yr-1 for compact binary coalescences with properties similar to GW230

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Mandel, Ilya, and Rory J. E. Smith. "GW200115: A Nonspinning Black Hole–Neutron Star Merger." Astrophysical Journal Letters 922, no. 1 (2021): L14. http://dx.doi.org/10.3847/2041-8213/ac35dd.

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Abstract GW200115 was the second merger of a black hole and a neutron star confidently detected through gravitational waves. Inference on the signal allows for a large black hole spin misaligned with the orbital angular momentum, but shows little support for aligned spin values. We show that this is a natural consequence of measuring the parameters of a black hole–neutron star binary with nonspinning components while assuming the priors used in the LIGO–Virgo–KAGRA analysis. We suggest that, a priori, a nonspinning binary is more consistent with current astrophysical understanding.

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7

Giammarchi, Marco, and Fulvio Ricci. "Gravitational Waves, Event Horizons and Black Hole Observation: A New Frontier in Fundamental Physics." Symmetry 14, no. 11 (2022): 2276. http://dx.doi.org/10.3390/sym14112276.

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The observation of supermassive black holes by the Event Horizon Telescope Collaboration and the detection of gravitational waves emitted during the merging phase of compact binary objects to stellar-mass black holes by the LIGO–Virgo–KAGRA collaboration constitute major achievements of modern science. Gravitational wave signals emitted by stellar-mass black holes are being used to test general relativity in an unprecedented way in the regime of strong gravitational fields, as well as to address other physics questions such as the formation of heavy elements or the Hawking Area Theorem. These

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Ray, Anarya, Ignacio Magaña Hernandez, Siddharth Mohite, Jolien Creighton, and Shasvath Kapadia. "Nonparametric Inference of the Population of Compact Binaries from Gravitational-wave Observations Using Binned Gaussian Processes." Astrophysical Journal 957, no. 1 (2023): 37. http://dx.doi.org/10.3847/1538-4357/acf452.

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Abstract The observation of gravitational waves from multiple compact binary coalescences by the LIGO–Virgo–KAGRA detector networks has enabled us to infer the underlying distribution of compact binaries across a wide range of masses, spins, and redshifts. In light of the new features found in the mass spectrum of binary black holes and the uncertainty regarding binary formation models, nonparametric population inference has become increasingly popular. In this work, we develop a data-driven clustering framework that can identify features in the component mass distribution of compact binaries

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9

Ray, Rajat Kanta. "The Kahar Chronicle." Modern Asian Studies 21, no. 4 (1987): 711–49. http://dx.doi.org/10.1017/s0026749x0000929x.

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Untouchable agricultural servants in the Indian countryside are among the lowliest people on earth. Such illiterate folk leave no written record to enable historians to comprehend their world from their own angle of vision. To write their history from below, historians have to search for contemporaneous observations which—even though made by an outsider—show some degree of empathy with their consciousness. The gifted novelist is able to enter recesses of the mind which elude the most acute scientific investigator. Among the several Bengali novels which have taken for their theme the wretched o

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10

K Gupta, P., Rishi Kumar Gupta, and Ritika Jayaswal. "Hydro-Geological Inferences through Holistic Analysis for Hanp-Sheonath-Kaura Groundwater Basins in Block Bemetara, District Bemetara [CG]." International Journal of Science and Research (IJSR) 10, no. 1 (2021): 965–68. https://doi.org/10.21275/sr21110161506.

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11

Van Putten, Maurice H. P. M. "SEARCH FOR GRAVITATIONAL WAVES FROM SUPERNOVAE AND LONG GRBS." Acta Polytechnica 53, A (2013): 736–41. http://dx.doi.org/10.14311/ap.2013.53.0736.

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We report on evidence for black hole spindown in the light curves of the BATSE catalogue of 1491 long GRBs by application of matched filtering. This observation points to a strong interaction of the black hole with surrounding high density matter at the ISCO, inducing non-axisymmetric instabilities sustained by cooling in gravitational wave emission. Opportunities for LIGO-Virgo and the recently funded KAGRA experiments are highlighted, for long GRBs with and without supernovae and for hyper-energetic core-collapse supernovae within a distance of about 35Mpc in the Local Universe.

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12

Parajuli, Kanchan. "Assessment of Bird Diversity and Abundance in Karra River Basin, Hetauda, Makawanpur." International Research Journal of MMC 3, no. 3 (2022): 18–33. http://dx.doi.org/10.3126/irjmmc.v3i3.48630.

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The main objective to carry out this study was to determine seasonal diversity, abundance, and ongoing threats to birds of the Karra river belt, Hetauda, Nepal. This study is based on observation. The bird survey methods and threat assessment techniques were used to analyse the data. A total of 153 bird species were recorded belonging to 15 orders and 38 families. Order Passeriformes was found dominating order with 70 species. Among 153 species, 98 species were residents, 37 species were winter visitors, 17 species were summer visitors, and one species was found, vagrant. One-way ANOVA reveale

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13

Li, Song, Wen-Biao Han, and Shu-Cheng Yang. "Tests of no-hair theorem with two binary black-hole coalescences." Journal of Cosmology and Astroparticle Physics 2024, no. 06 (2024): 013. http://dx.doi.org/10.1088/1475-7516/2024/06/013.

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Abstract Test of the no-hair theorem is the primary target with gravitational waves from binary black holes. In this paper, we analyze gravitational-wave data from the LIGO-Virgo-KAGRA detection of binary black-hole mergers using the ΨFD model, which is a non-general relativity full waveform template for arbitrary axisymmetric black holes. By analyzing two high signal-noise-ratio events, GW150914 and GW200129_065458, the no-hair theorem is tested at a significance level of 95%, which is the best constraint until now. More events and further analysis are needed to investigate the suspected devi

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14

Gondan, Laszlo, Bence Kocsis, Peter Raffai, and Zsolt Frei. "Accuracy of Estimating Highly Eccentric Binary Black Hole Parameters with Gravitational-Wave Detections." Astrophysical Journal 855 (February 4, 2018): 34. https://doi.org/10.5281/zenodo.1185144.

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Mergers of stellar-mass black holes on highly eccentric orbits are among the targets for ground-based gravitational-wave detectors, including LIGO, VIRGO, and KAGRA. These sources may commonly form through gravitational-wave emission in high velocity dispersion systems or through the secular Kozai-Lidov mechanism in triple systems. Gravitational waves carry information about the binaries' orbital parameters and source location. Using the Fisher matrix technique, we determine the measurement accuracy with which the LIGO-VIRGO-KAGRA network could measure the source parameters of eccentric bi

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15

Casey, Brenna M. "Queer Times, Black Futures by Kara Keeling." African American Review 53, no. 4 (2020): 342–45. http://dx.doi.org/10.1353/afa.2020.0051.

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16

Brown, William. "Kara Keeling (2019) Queer Times, Black Futures." Film-Philosophy 24, no. 3 (2020): 379–82. http://dx.doi.org/10.3366/film.2020.0153.

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17

Baker, Courtney R. "Queer Times, Black Futures by Kara Keeling." JCMS: Journal of Cinema and Media Studies 60, no. 1 (2020): 164–67. http://dx.doi.org/10.1353/cj.2020.0072.

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18

Davis, Nick. "Queer Times, Black Futures by Kara Keeling." Film Quarterly 73, no. 1 (2019): 101–2. http://dx.doi.org/10.1525/fq.2019.73.1.101.

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19

Francis, Dania V. "Kahrl, Andrew W. The Black Tax: 150 Years of Theft, Exploitation, and Dispossession in America." Journal of Economic Literature 63, no. 2 (2025): 699–701. https://doi.org/10.1257/jel.63.2.693.r4.

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Dania V. Francis of University of Massachusetts Boston reviews “The Black Tax: 150 Years of Theft, Exploitation, and Dispossession in America” by Andrew W. Kahrl. The Econlit abstract of this book begins: “Discusses the history of racialized tax structures and the predatory practices that flourished within them in the United States, tracing these structures and practices from the Reconstruction through the first two decades of the twenty-first century.”

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20

Crescimbeni, F., V. Desjacques, G. Franciolini, et al. "The irrelevance of primordial black hole clustering in the LVK mass range." Journal of Cosmology and Astroparticle Physics 2025, no. 05 (2025): 001. https://doi.org/10.1088/1475-7516/2025/05/001.

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Abstract We show that in common inflationary models where primordial black holes are formed due to the collapse of sizeable inflationary perturbations, their initial spatial clustering beyond the Poisson distribution does not affect the binary mergers — including sub-solar primordial black holes — responsible for the gravitational waves detectable by LIGO-Virgo-KAGRA. This is a consequence of the existing FIRAS CMB distortion constraints on the relevant scales. However, this conclusion may not hold for lighter masses potentially accessible by future gravitational wave observations and for mult

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21

Shinkai, Hisaaki. "Event Rates of Gravitational Waves from merging Intermediate mass Black Holes: based on a Runaway Path to a SMBH." EPJ Web of Conferences 168 (2018): 05002. http://dx.doi.org/10.1051/epjconf/201816805002.

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Based on a dynamical formation model of a supermassive black hole (SMBH), we estimate the expected observational profile of gravitational wave at ground-based detectors, such as KAGRA or advanced LIGO/VIRGO. Noting that the second generation of detectors have enough sensitivity from 10 Hz and up, we are able to detect the ring-down gravitational wave of a BH with the mass M < 2 × 103M⊙. This enables us to check the sequence of BH mergers to SMBHs via intermediate-mass BHs. We estimate the number density of galaxies from the halo formation model and estimate the number of BH mergers from the

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22

S.V., Bakanev, and Pavlov V.A. "PROSPECTS OF SNOW CRAB (CHIONOECETES OPILIO) FISHERIES IN THE KARA SEA." Problems of fisheries 21, no. 4 (2020): 478–87. http://dx.doi.org/10.36038/0234-2774-2020-21-4-478-487.

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23

Stephens, Brian. "Prissy’s Quittin’ Time: The Black Camp Aesthetics of Kara Walker." Open Cultural Studies 1, no. 1 (2017): 646–59. http://dx.doi.org/10.1515/culture-2017-0059.

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Abstract Through a close reading of Walker’s first silhouette instalment-the audaciously titled Gone, An Historical Romance of a Civil War as it Occurred Between the Dusky Thighs of One Young Negress and Her Heart (1994)-this article examines how Walker utilises black camp to undermine both white supremacist and restrictive black uplift discourse. To be sure, the article is not an attempt to conflate these two, for the former is powerfully worse than the latter. However, it is necessary to explore how both discourses reinforce essentialist articulations of blackness and also to examine how bla

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24

Kafa, Bülent, and Berna Kılınç. "Microbiological quality of frozen black mussels (Mytilus galloprovincialis, Lamarck, 1819) purchased from markets in the İzmir Province of Turkey." Ege Journal of Fisheries and Aquatic Sciences 38, no. 2 (2021): 167–72. http://dx.doi.org/10.12714/egejfas.38.2.05.

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The purpose of this study was to examine the microbiological quality and consumer safety of frozen black mussels purchased from four different markets (A, B, C, D) in the İzmir Province of Turkey. A total of 36 frozen black mussel packages, which contained approximately 50 mussels in each, were purchased from the markets. They were not only examined for total mesophilic, psychrotrophic, coliform and fecal coliform bacteria count but also investigated for pathogenic bacteria such as Escherichia coli, Staphylococcus aureus, Listeria monocytogenes and Vibrio spp. According to the results of the m

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25

Dong, Xiao-Fei, Yong-Feng Huang, Zhi-Bin Zhang, et al. "Mass Function of Stellar Black Holes as Revealed by the LIGO–Virgo–KAGRA Observations." Astrophysical Journal 977, no. 1 (2024): 29. http://dx.doi.org/10.3847/1538-4357/ad8b43.

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Abstract Ninety gravitational-wave events have been detected by the LIGO–Virgo–KAGRA network and are released in the Gravitational-Wave Transient Catalog. Among these events, 83 cases are definitely binary black hole mergers, since the masses of all the objects involved significantly exceed the upper limit of neutron stars. The black holes in these merger events naturally form two interesting samples, a premerger sample that includes all the black holes before the mergers and a postmerger sample that consists of the black holes generated during the merging processes. The former represents blac

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26

Perla, James. "Kara Walker's Uncanny Valley in Fortuna and the Immortality Garden (Machine)." Screen Bodies 10, no. 1 (2025): 115–19. https://doi.org/10.3167/screen.2025.100110.

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Abstract This exhibition review of Kara Walker's Fortuna and the Immortality Garden (Machine) interprets how Walker frames the Black body as a literal and figurative entry point to the cultural institutions that form American identity. The exhibition interrogates histories of epistemic violence that marginalize Black people within discourses of Western humanism, situating Black bodies in symbolic opposition to the Human, while simultaneously in conceptual resonance with other nonhuman entities, such as the machine and the automaton. Within her “Immortality Garden,” Walker envisions the possibi

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27

SAKAR, Çağrı Melikşah. "Sıcaklık-Nem İndeks Değerlerinin Yerli Kara Erkek Sığırlarda Bazı Davranışlar Üzerine Etkileri." Uluslararası Tarım ve Yaban Hayatı Bilimleri Dergisi 8, no. 2 (2022): 349–57. http://dx.doi.org/10.24180/ijaws.1035429.

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In this study, ear temperature and some behavioural data were determined in the four male animals of Anatolian Black cattle raised under the Institute conditions. For this purpose, a chip sensor (CowManager) was attached to the ears of the animals, and data of 51 days were obtained from each animal hourly. During the study, hourly temperature and humidity data of the barn where the animals were housed were collected, and hourly and daily Temperature - Humidity Index (THI) data were calculated from these values. According to these index values, daily THI values were classified in 3 groups, whil

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28

Ruiz-Rocha, Krystal, Kelly Holley-Bockelmann, Karan Jani, Michela Mapelli, Samuel Dunham, and William Gabella. "A Sea of Black Holes: Characterizing the LISA Signature for Stellar-origin Black Hole Binaries." Astrophysical Journal 981, no. 1 (2025): 27. https://doi.org/10.3847/1538-4357/adad6b.

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Abstract Observations by the LIGO, Virgo, and KAGRA (LVK) detectors have provided new insights into the demographics of stellar-origin black hole binaries (sBHBs). A few years before gravitational-wave signals from sBHB mergers are recorded in the LVK detectors, their early coalescence will leave a unique signature in the ESA/NASA mission Laser Interferometer Space Antenna (LISA). Multiband observations of sBHB sources between the LISA and LVK detectors opens an unprecedented opportunity to investigate the astrophysical environment and multimessenger early alerts. In this study, we report the

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29

Zhong, Zimu. "Principle and State-of-art Observation Scenarios of Black Holes." Highlights in Science, Engineering and Technology 72 (December 15, 2023): 129–35. http://dx.doi.org/10.54097/p5450f83.

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Tracing back to the 17th century, the concept of black holes emerged as "dark stars," celestial bodies with gravitational pull surpassing the speed of light. Schwarzschild's solution to Einstein's equations in 1916 introduced the concept of a singularity and the Schwarzschild radius, defining black holes as objects compressed within this boundary. Two main classification methods for black holes based on mass and charge/angular momentum are discussed’. The study explores the principles of detection: gravitational waves, generated by events like black hole mergers, and gravitational lensing, whe

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Feng, Wei-Xiang, Simeon Bird, and Hai-Bo Yu. "Gravitational Waves from Primordial Black Hole Dark Matter Spikes." Astrophysical Journal 986, no. 2 (2025): 151. https://doi.org/10.3847/1538-4357/adda2f.

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Abstract The origin of the binary black hole mergers observed by LIGO–Virgo–KAGRA remains an open question. We calculate the merger rate from primordial black holes (PBHs) within the density spike around supermassive black holes (SMBHs) at the centers of galaxies. We show that the merger rate within the spike is comparable to that within the wider dark matter halo. We also calculate the extreme mass ratio inspiral (EMRI) signal from PBHs hosted within the density spike spiralling into their host SMBHs due to gravitational-wave emission. We predict that LISA may detect ∼104 of these EMRIs with

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Loeb, Abraham. "LIGO-Virgo-KAGRA Limit on Relativistic Interstellar Objects near Earth." Research Notes of the AAS 8, no. 8 (2024): 214. http://dx.doi.org/10.3847/2515-5172/ad73da.

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Abstract Relativistic interstellar objects (RISOs) are not constrained by astronomical sky surveys because they are smeared in sky images and at best appear in one frame. Here, I show that irrespective of their nature, RISOs more massive than ∼1014 g would have been detected by the LIGO-Virgo-KAGRA collaboration through their tidal gravitational signal at a frequency of f ∼ 50 Hz within a distance comparable to the Earth radius. This constrains the passage of relativistic primordial black holes or other exotic objects at the local mass density of dark matter near Earth over the past decade.

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32

Bambi, Cosimo. "X-ray Tests of General Relativity with Black Holes." Symmetry 15, no. 6 (2023): 1277. http://dx.doi.org/10.3390/sym15061277.

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General relativity is one of the pillars of modern physics. For decades, the theory has been mainly tested in the weak-field regime with experiments in the solar system and radio observations of binary pulsars. Until 2015, the strong-field regime was almost completely unexplored. Thanks to new observational facilities, the situation has dramatically changed in the last few years. Today, we have gravitational wave data of the coalesce of stellar-mass compact objects from the LIGO-Virgo-KAGRA collaboration, images at mm wavelengths of the supermassive black holes in M87* and Sgr A* from the Even

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de Sá, Lucas M. de, Antônio Bernardo, Riis R. A. Bachega, Livia S. Rocha, Pedro H. R. S. Moraes, and Jorge E. Horvath. "An Overview of Compact Star Populations and Some of Its Open Problems." Galaxies 11, no. 1 (2023): 19. http://dx.doi.org/10.3390/galaxies11010019.

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The study of compact object populations has come a long way since the determination of the mass of the Hulse–Taylor pulsar, and we now count on more than 150 known Galactic neutron stars and black hole masses, as well as another 180 objects from binary mergers detected from gravitational-waves by the Ligo–Virgo–KAGRA Collaboration. With a growing understanding of the variety of systems that host these objects, their formation, evolution and frequency, we are now in a position to evaluate the statistical nature of these populations, their properties, parameter correlations and long-standing pro

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Rom, Barak, Re’em Sari, and Dong Lai. "Formation of Merging Stellar-mass Black Hole Binaries by Gravitational-wave Emission in Active Galactic Nucleus Disks." Astrophysical Journal 964, no. 1 (2024): 43. http://dx.doi.org/10.3847/1538-4357/ad284b.

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Abstract Many stellar-mass black holes (sBHs) are expected to orbit supermassive black holes at galactic centers. For galaxies with active galactic nuclei, it is likely that the sBHs reside in a disk. We study the formation of sBH binaries via gravitational-wave emission in such disks. We examine analytically the dynamics of two sBHs orbiting a supermassive black hole, estimate the capture cross section, and derive the eccentricity distribution of bound binaries at different frequency bands. We find that the majority of the merging sBH binaries, assembled in this manner, can be measured as hig

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Yuan, Chen, and Qing-Guo Huang. "Primordial black hole interpretation in subsolar mass gravitational wave candidate SSM200308." Journal of Cosmology and Astroparticle Physics 2024, no. 09 (2024): 051. http://dx.doi.org/10.1088/1475-7516/2024/09/051.

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Abstract In the recent second part of the third observation run by the LIGO-Virgo-KAGRA collaboration, a candidate with sub-solar mass components was reported, which we labelled as SSM200308. This study investigates the premise that primordial black holes (PBHs), arising from Gaussian perturbation collapses, could explain SSM200308. Through Bayesian analysis, we obtain the primordial curvature power spectrum that leads to the merger rate of PBHs aligning with observational data as long as they constitute f PBH = 5.66+58.68 -5.44 × 10-2 of the dark matter. However, while the gravitational wave

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Ghodla, Sohan. "The effect of interstellar medium on LVK’s black holes." Monthly Notices of the Royal Astronomical Society 532, no. 1 (2024): 439–50. http://dx.doi.org/10.1093/mnras/stae1545.

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ABSTRACT Gravitational radiation alone is not efficient in hardening the orbit of a wide binary black hole (BBH). By employing a toy model for the interstellar medium (ISM) surrounding BBHs, here we discuss the effect of this baryonic medium on BBH dynamics. Depending on the BBH’s mass, we show that a binary surrounded by an isotropic cold neutral medium (i.e. an asymptotic temperature $T_{\infty } \approx 100$ K) with a time-averaged particle density of $\langle n_\mathrm{ H} \rangle = \mathcal {O}(1)$ cm$^{-3}$ can play a significant role in hardening the binary orbit over a $\mathcal {O}(10

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Adamcewicz, Christian, Shanika Galaudage, Paul D. Lasky, and Eric Thrane. "Which Black Hole Is Spinning? Probing the Origin of Black Hole Spin with Gravitational Waves." Astrophysical Journal Letters 964, no. 1 (2024): L6. http://dx.doi.org/10.3847/2041-8213/ad2df2.

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Abstract Theoretical studies of angular momentum transport suggest that isolated stellar-mass black holes are born with negligible dimensionless spin magnitudes χ ≲ 0.01. However, recent gravitational-wave observations indicate ≳40% of binary black hole systems contain at least one black hole with a nonnegligible spin magnitude. One explanation is that the firstborn black hole spins up the stellar core of what will become the second-born black hole through tidal interactions. Typically, the second-born black hole is the “secondary” (less massive) black hole though it may become the “primary” (

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Martin, Kameelah L. "Fear of a Black (Southern) Planet: Kara Walker's Night Conjure." Southern Cultures 29, no. 4 (2023): 50–53. http://dx.doi.org/10.1353/scu.2023.a917562.

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Abstract: Black folk have a dubious relationship with landscapes of the American South, where the living dead—Indigenous, enslaved, Confederate, and everyone in between—saturate the natural world with unresolved trauma. Kara Walker has long explored the complexity of race relations during the rise and fall of the plantation economy, and in Night Conjure (2001), she inverts the iconography of Black fright against a white cotton field to envision other ways in which the South begat terror and for whom. Walker picks up the seemingly contradictory relationship between women of African descent and

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TAŞDEMİR, Umut, Tahir KARAŞAHİN, Muharrem SATILMIŞ, Sedat Hamdi KIZIL, and Mustafa KAYMAZ. "Various FSH Administration on Superovulatory Response and Embryo Yield in Anatolian Black Heifers." Kocatepe Veterinary Journal 9, no. 4 (2016): 322–26. http://dx.doi.org/10.5578/kvj.35305.

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Tauris, Thomas M. "Tossing Black Hole Spin Axes." Astrophysical Journal 938, no. 1 (2022): 66. http://dx.doi.org/10.3847/1538-4357/ac86c8.

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Abstract The detection of double black hole (BH+BH) mergers provides a unique possibility to understand their physical properties and origin. To date, the LIGO–Virgo–KAGRA network of high-frequency gravitational-wave observatories has announced the detection of more than 85 BH+BH merger events. An important diagnostic feature that can be extracted from the data is the distribution of effective inspiral spins of the BHs. This distribution is in clear tension with theoretical expectations from both an isolated binary star origin, which traditionally predicts close-to-aligned BH component spins,

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Mukherjee, Suvodip, and Azadeh Moradinezhad Dizgah. "Toward a Precision Measurement of Binary Black Holes Formation Channels Using Gravitational Waves and Emission Lines." Astrophysical Journal Letters 937, no. 2 (2022): L27. http://dx.doi.org/10.3847/2041-8213/ac903b.

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Abstract The formation of compact objects—neutron stars, black holes, and supermassive black holes—and their connection to the chemical composition of galaxies is one of the central questions in astrophysics. We propose a novel data-driven, multi-messenger technique to address this question by exploiting the inevitable correlation between gravitational waves and atomic/molecular emission-line signals. For a fiducial probability distribution function p ( t d ) ∝ t d − κ of time delays, this method can provide a measurement of the minimum delay time of 0.5 Gyr and a power-law index of κ = 1 with

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Corris, Michael, and Robert Hobbs. "Reading Black Through White in the Work of Kara Walker." Art History 26, no. 3 (2003): 422–41. http://dx.doi.org/10.1111/j.0141-6790.2003.02603006.x.

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Yıldız Zeyrek, Fadile, Şahin Toprak, Sinem Öktem Okullu, Gülcan Gürses, Nebiye Yentür Doni, and Özgür Kurt. "In Vitro Efficacy of the Venome of Black Scorpion (Androctonus crassicauda) on Leishmania tropica Promastigotes." Mikrobiyoloji Bulteni 55, no. 4 (2021): 635–41. http://dx.doi.org/10.5578/mb.20219714.

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Broekgaarden, Floor S., Simon Stevenson, and Eric Thrane. "Signatures of Mass Ratio Reversal in Gravitational Waves from Merging Binary Black Holes." Astrophysical Journal 938, no. 1 (2022): 45. http://dx.doi.org/10.3847/1538-4357/ac8879.

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Abstract The spins of merging binary black holes offer insights into their formation history. Recently it has been argued that in the isolated binary evolution of two massive stars the firstborn black hole is slowly rotating, while the progenitor of the second-born black hole can be tidally spun up if the binary is tight enough. Naively, one might therefore expect that only the less massive black hole in merging binaries exhibits nonnegligible spin. However, if the mass ratio of the binary is “reversed” (typically during the first mass transfer episode), it is possible for the tidally spun up

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Tiwari, Vaibhav. "Exploring Features in the Binary Black Hole Population." Astrophysical Journal 928, no. 2 (2022): 155. http://dx.doi.org/10.3847/1538-4357/ac589a.

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Abstract Vamana is a mixture model framework that infers the astrophysical distribution of chirp mass, mass ratio, and spin component aligned with the orbital angular momentum for the binary black holes (BBH) population. We extend the mixing components in this framework to also model the redshift evolution of merger rate and report all the major one- and two-dimensional features in the BBH population using the 69 gravitational-wave signals detected with a false alarm rate <1 yr−1 in the third Gravitational-Wave Transient Catalog (GWTC-3). Endorsing our previous report and a recent corrobora

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Abac, A. G., R. Abbott, I. Abouelfettouh, et al. "Observation of Gravitational Waves from the Coalescence of a 2.5–4.5 M _⊙ Compact Object and a Neutron Star." Astrophysical Journal Letters 970, no. 2 (2024): L34. http://dx.doi.org/10.3847/2041-8213/ad5beb.

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Abstract We report the observation of a coalescing compact binary with component masses 2.5–4.5 M ⊙ and 1.2–2.0 M ⊙ (all measurements quoted at the 90% credible level). The gravitational-wave signal GW230529_181500 was observed during the fourth observing run of the LIGO–Virgo–KAGRA detector network on 2023 May 29 by the LIGO Livingston observatory. The primary component of the source has a mass less than 5 M ⊙ at 99% credibility. We cannot definitively determine from gravitational-wave data alone whether either component of the source is a neutron star or a black hole. However, given existing

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Postnov, K. A., and N. A. Mitichkin. "On the Primordial Binary Black Hole Mergings in LIGO-Virgo-Kagra Data." Physics of Particles and Nuclei 54, no. 5 (2023): 884–88. http://dx.doi.org/10.1134/s1063779623050192.

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Gökdağ, Kamuran. "Society Defends Itself: The Biopolitical Dilemma, Singularity of Existence, and Social Black Hole in Covid-19." Journal of Humanity and Society (insan & toplum) 11, no. 1 (2021): 209–34. http://dx.doi.org/10.12658/m0616.

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This essay focuses on the existential conflict between society and politics that has once again come to the fore in the sense of biopolitical theory with the Covid-19 outbreak. It attempts to demonstrate where and how the theory of biopolitics is insufficient at understanding the individual, who has reset all relationships under the circumstances of the pandemic, while providing a certain viewpoint based on true and logical facts. The essay considers this insufficiency as a common deficiency of the various types of biopolitical theory and correlates this to a historical deficiency that has lac

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VURAL, Deniz, and Sıdıka EKREN. "The Effect of Different Planting Densities on Yield Yield Components and Some Quality Properties of Virginia (Sun-Cured) Tobacco in Adıyaman Province." ISPEC Journal of Agricultural Sciences 6, no. 4 (2022): 852–65. https://doi.org/10.5281/zenodo.7379574.

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This study was carried out in a farmer field during the tobacco vegetation period in Kahta district of Adıyaman province in 2021. In this research, it was aimed to determine the yield and yield components, expertise and some chemical properties of sun-cured virginia tobacco variety of different planting densities. Experimental design was Randomized Complete Block Design with three replications. In the trial, 7 different planting methods 110x38, 100x40, 100x35, 90x40, 80x40, 90x35 ve 80x35 cm were applied. Plant height (cm), number of the leaves (per plant<sup>-1</sup>), leaf width (cm), leaf l

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ŞAHİN, Emine. "KÜRESEL TÜKETİM RİTÜELİ KARA CUMAYA (BLACK FRIDAY) TÜKETİCİ TEPKİLERİ VE ÇELİŞ." Journal of Academic Social Science Studies 7, Number: 71 (2018): 387–404. http://dx.doi.org/10.9761/jasss7788.

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