Results 91 to 100 of about 449,256 (294)

Massive scalar field in multiply connected flat spacetimes

, 1995
The vacuum expectation value of the stress-energy tensor $\left\langle 0\left| T_{\mu\nu} \right|0\right\rangle$ is calculated in several multiply connected flat spacetimes for a massive scalar field with arbitrary curvature coupling.
B. S. DeWitt, B. S. Kay, C. W. Misner, D. G. Boulware, D. J. Toms, D. J. Toms, D. Laurence, F. Echeverria, G. Klinkhammer, I. D. Novikov, J. D. E. Grant, J. Friedman, J. L. Friedman, J. L. Friedman, K. S. Thorne, L. H. Ford, L. H. Ford, L. H. Ford, M. Lyutikov, N. D. Birrell, R. M. Wald, S. A. Fulling, S. W. Hawking, S. W. Hawking, S. W. Kim, T. Tanaka, Tsunefumi Tanaka, V. P. Frolov, W. A. Hiscock, William A. Hiscock   +29 more
core   +2 more sources

Emergency Cholecystectomy in Patients Classified as High Risk According to the Tokyo Guidelines 2018: A Real‐World Analysis

Annals of Gastroenterological Surgery, EarlyView.
Emergency cholecystectomy was evaluated in patients with acute cholecystitis classified as non‐recommended for surgery by the Tokyo Guidelines 2018. Major postoperative complications, rather than mortality, better reflected operative risk. Physiological instability, particularly ASA‐PS ≥ 3 and shock status, identified high‐risk patients, suggesting ...
Satoshi Mii, So Yamaki, Daisuke Hashimoto, Kazuki Matsumura, Hiroyuki Ishida, Hidetaka Miyazaki, Yuki Matsui, Yuji Ikeda, Tsukasa Ikeura, Sohei Satoi   +9 more
wiley   +1 more source

Measure and material of the 18th- 20th century masonry techniques. Archaeological analysis of the University building in Cagliari (Italy)

Restauro Archeologico, 2016
The University building represents a valid benchmark of the 18th century civil architecture in Cagliari. It consists of two separate architectures, initially seat of the Rectorate and of the Tridentine seminary, which over time have taken on a ...
Caterina Giannattasio, Silvana Maria Grillo, Maria Serena Pirisino   +2 more
doaj   +1 more source

van Vleck determinants: traversable wormhole spacetimes

, 1993
Calculating the van Vleck determinant in traversable wormhole spacetimes is an important ingredient in understanding the physical basis behind Hawking's chronology protection conjecture.
A. Taub, B. S. DeWitt, B. S. DeWitt, C. Barrabes, C. Morette, C. W. Misner, G. Klinkhammer, I. H. Redmount, I. H. Redmount, I. S. Gradshteyn, J. H. van Vleck, M. Abramowitz, M. Lyutikov, M. R. Spiegel, M. S. Morris, M. S. Morris, M. Visser, M. Visser, M. Visser, M. Visser, M. Visser, Matt Visser, N. Sen, S. W. Hawking, S. W. Hawking, S. W. Hawking, S. W. Kim, V. I. Frolov, W. Israel, W. Israel   +29 more
core   +2 more sources

Short‐Term Outcomes and Cost Drivers of Emergency Surgery for Acute Abdominal Disease in Super‐Elderly Patients: A Study in the Japanese Tertiary Care Hospital

Annals of Gastroenterological Surgery, EarlyView.
This retrospective study analyzed patients aged ≥ 85 years undergoing emergency abdominal surgery, focusing on short‐term outcomes and inpatient cost structure under the Japanese DPC system. Although major complications occurred in 19.4% of patients, more than 70% were discharged home.
Yuta Kobayashi, Ryo Oikawa, Yumi Shibuya, Masakazu Tatsuno, Atsuya Kamiyama, Tsuyoshi Ozawa, Keiichiro Hara, Shojiro Hata, Hirokazu Yamaguchi   +8 more
wiley   +1 more source

A novel method for fine‐scale retrospective isotope analysis in mammals using eye lenses

Ecosphere
Understanding individual variations in animal behavior is crucial for ecology, evolution, conservation, and wildlife management. However, traditional bio‐logging methods have often impeded the reconstruction of long‐term behavioral patterns in mammals ...
Kazuki Miura, Jun Matsubayashi, Chikage Yoshimizu, Hino Takafumi, Yuri Shirane, Tsutomu Mano, Hifumi Tsuruga, Ichiro Tayasu   +7 more
doaj   +1 more source

COASTAL MORPHO- DYNAMICS OF THE NORTH-WESTERN ONEZHSKY PENINSULA, WHITE SEA IN THE HOLOCENE. KONYUKHOV BAY

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017
Data from geomorphological surveys of the Konyukhov Bay coast (north-western part of Onezhsky Peninsula), radiocarbon dating of organogenic sediments, echo sounding of water areas of the bay and lakes (water lines at 15.8-26.1 m a. s.
Tatyana Repkina, Natalia Zaretskaya, Dmitry Subetto, Maksim Potakhin, Mergen Kungaa, Anna Novikova, Pyotr Leontiev   +6 more
doaj   +1 more source

Nitrogen chronology of massive main sequence stars

, 2012
Rotational mixing in massive main sequence stars is predicted to monotonically increase their surface nitrogen abundance with time. We use this effect to design a method for constraining the age and the inclination angle of massive main sequence stars ...
A. de Koter, Brott, Brott, Buonanno, Charbonnel, de Mink, Dufton, Endal, Evans, Evans, Heger, Hubeny, Hunter, Hunter, Hunter, Hunter, I. Brott, K. Köhler, M. Borzyszkowski, Maeder, Maeder, Meynet, Meynet, Mokiem, N. Langer, Przybilla, Salpeter, Sana, Schaerer, Vink, Vink, Vink   +31 more
core   +2 more sources

Artificial Intelligence for Bone: Theory, Methods, and Applications

Advanced Intelligent Discovery, EarlyView.
Advances in artificial intelligence (AI) offer the potential to improve bone research. The current review explores the contributions of AI to pathological study, biomarker discovery, drug design, and clinical diagnosis and prognosis of bone diseases. We envision that AI‐driven methodologies will enable identifying novel targets for drugs discovery. The
Dongfeng Yuan, Haicang Zhang, Liping Tong, Di Chen   +3 more
wiley   +1 more source

Pertanggalan Relatif Situs Gunungwingko (Studi Pendahuluan)

Berkala Arkeologi, 1989
Situs Gunungwingko berupa dua deret bukit pasir. Deretan pertama terletak di sebelah utara, sedangkan deretan kedua terletak di sebelah selatannya.
Goenadi Nitihaminoto
doaj   +1 more source