Results 111 to 120 of about 957,509 (334)

Principal Component‐Based Classification of Blazar Candidates of Uncertain Type in the 4FGL/LAT

Astronomische Nachrichten, EarlyView.
ABSTRACT We adopted principal component analysis (PCA), linear discriminant analysis (LDA), and support vector machines (SVM), to study classification for a sample of 2708 Fermi blazars: 1142 BL Lac objects (BLLs), 759 flat spectrum radio quasars (FSRQs), and 807 blazar candidates of uncertain type (BCUs).
Wen‐Xin Yang, Guo‐Hai Chen, Jing‐Tian Zhu, Hong‐Guang Wang, Denis Bastieri, Xu‐Hong Ye, Jing‐Chao Liang, De‐Xiang Wu, Jiang‐He Yang, Anton A. Strigachev, Rumen S. Bachev, Jun‐Jie Feng, Yi Liu, Jun‐Hui Fan   +13 more
wiley   +1 more source

The Preprint Evolution: The Rise of Unreviewed Drafts on arXiv and Its Implications for Astronomy

Astronomische Nachrichten, EarlyView.
ABSTRACT The arXiv preprint server originally democratized astronomical research by removing the financial barriers of journal subscriptions. However, a system designed for the lower publication volumes of the 1990s has fractured under modern research output. Today, the sheer volume of unreviewed manuscripts—often tagged as “submitted,” “under review,”
Luigi Rolly Bedin
wiley   +1 more source

The SPHEREx Sky Simulator: Science Data Modeling for the First All-sky Near-infrared Spectral Survey

The Astrophysical Journal Supplement Series
We describe the SPHEREx Sky Simulator (henceforth the Simulator), a software tool designed to model science data for NASA’s SPHEREx mission that will carry out a series of all-sky spectrophotometric surveys at ∼6″ spatial resolution in 102 spectral ...
Brendan P. Crill, Yoonsoo P. Bach, Sean A. Bryan, Jean Choppin de Janvry, Ari J. Cukierman, C. Darren Dowell, Spencer W. Everett, Candice Fazar, Tatiana Goldina, Zhaoyu Huai, Howard Hui, Woong-Seob Jeong, Jae Hwan Kang, Phillip M. Korngut, Jae Joon Lee, Daniel C. Masters, Chi H. Nguyen, Jeonghyun Pyo, Teresa Symons, Volker Tolls, Yujin Yang, Michael Zemcov, Rachel Akeson, Matthew L. N. Ashby, James J. Bock, Tzu-Ching Chang, Yun-Ting Cheng, Yi-Kuan Chiang, Asantha Cooray, Olivier Doré, Andreas L. Faisst, Richard M. Feder, Michael W. Werner   +32 more
doaj   +1 more source

The Ultimate Astronomical Field Trip: Observing Experiences for Teachers

, 2011
Since January 1998, a group of Texas 6–12th science and math teachers have met several times per year to learn first-hand about how scientific instrumentation and its use.
Lacy, John H., Hemenway, Mary K.
core  

The absence of women's scientific contributions in core UK pre‐university science qualifications

British Educational Research Journal, EarlyView.
Abstract Despite their groundbreaking contributions to our understanding of the natural world and the universe, women's roles in biology, chemistry, physics, astronomy, environmental science and geology remain largely absent from standard educational specifications in the United Kingdom (UK), particularly at Key Stage 4 (KS4) and Key Stage 5 (KS5), or ...
G. J. Cooke, S. B. White, S. Buttigieg, N. Lowson, S. Galaudage, A. Battisti, L. Kelsey, K. Ross   +7 more
wiley   +1 more source

Polarization Reconstruction Study of Wide Field-of-view Photoelectric Polarimeter for POLAR-2/LPD

The Astrophysical Journal Supplement Series
The Low-Energy X-ray Polarization Detector (LPD) is one of the payloads in the POLAR-2 experiment, which is planned as an external payload for deployment on the China Space Station in 2026.
Zu-Ke Feng, Hong-Bang Liu, Di-Fan Yi, Li-Rong Xie, Cong Dai, Huan-Bo Feng, Jian-Chao Sun, Jiang He, Yuan-Hao Wang, Rui-Ting Ma, Bin-Long Wang, Qian-Nan Mai, Jiang-Chuan Tuo, Qian Zhong, Zhen-Yu Tang, Qian Liu, Fei Xie, Shuang-Nan Zhang, En-Wei Liang   +18 more
doaj   +1 more source

A Modular Micro‐Chemostat System for High‐Throughput Continuous Cultivations

Biotechnology and Bioengineering, EarlyView.
This study presents and demonstrates a modular 12‐channel micro‐chemostat, designed to be used by Genesis, a Robot Scientist developed to automate scientific research in yeast systems biology. The bioreactor performance fulfilled the predefined requirements, and the empirical results from the biological experiments were consistent with the literature ...
Erik Y. Bjurström, Filip Kronström, Ronald S. Reiserer, David K. Schaffer, Dmitry A. Markov, John P. Wikswo, Ross D. King, Ievgeniia A. Tiukova   +7 more
wiley   +1 more source

Data‐Driven Pathways to Circular E‐Waste Management

Business Strategy and the Environment, EarlyView.
ABSTRACT As the volume and complexity of electronic waste grow worldwide, regional and subnational systems are increasingly tasked with managing the environmental, economic, and social challenges of circular resource recovery. This paper focuses on Canada's e‐waste sector to examine how circular economy (ce) principles can be integrated into regional ...
Saidia Ali, Samin Sahaaban‐Nejad, Farid Shirazi, Nick Hajli   +3 more
wiley   +1 more source

New techniques in astronomical spectroscopy for 8-m telescopes [PDF]

, 1998
The purpose of this thesis is to investigate new instrument technology to enhance the capabilities of 8-m telescopes. This thesis first describes the theory, design, construction, and testing of an immersed grating.
Lee, David, Lee, D.
core  

The Impact of Sustainability Labelling on Consumers' Evaluation and Choice of Food Products: A Systematic Literature Review

Business Strategy and the Environment, EarlyView.
ABSTRACT The last five years of research on sustainability labelling, reported in 175 journal articles, documents its effectiveness in increasing consumer choices of more sustainable food products. Some sustainability labels come out as stronger than others and their impact varies across products, countries, and individual consumers, depending on label
John Thøgersen, Lucía Romero‐Verdú, Anne O. Peschel   +2 more
wiley   +1 more source