Results 51 to 60 of about 19,620 (206)

Top-of-the-atmosphere shortwave flux estimation from satellite observations: an empirical neural network approach applied with data from the A-train constellation [PDF]

Atmospheric Measurement Techniques, 2016
Estimates of top-of-the-atmosphere (TOA) radiative flux are essential for the understanding of Earth's energy budget and climate system. Clouds, aerosols, water vapor, and ozone (O3) are among the most important atmospheric agents impacting the Earth's ...
P. Gupta, J. Joiner, A. Vasilkov, P. K. Bhartia   +3 more
doaj   +1 more source

Kernel Bounds for Parabolic Operators Having First‐Order Degeneracy at the Boundary

Mathematische Nachrichten, EarlyView.
ABSTRACT We study kernel estimates for parabolic problems governed by singular elliptic operators ∑i,j=1N+1qijDij+cDyy,cγ+1>0,γ=qN+1,N+1,$$\begin{equation*} \sum _{i,j=1}^{N+1}q_{ij}D_{ij}+c\frac{D_y}{y},\qquad \frac{c}{\gamma }+1>0, \quad \gamma =q_{N+1,N+1}, \end{equation*}$$in the half‐space R+N+1={(x,y):x∈RN,y>0}$\mathbb {R}^{N+1}_+=\lbrace (x,y ...
L. Negro, C. Spina
wiley   +1 more source

UWB pulse detection and TOA estimation using GLRT

EURASIP Journal on Advances in Signal Processing, 2017
In this paper, a novel statistical approach is presented for time-of-arrival (TOA) estimation based on first path (FP) pulse detection using a sub-Nyquist sampling ultra-wide band (UWB) receiver.
Yan Xie, Gerard J.M. Janssen, Siavash Shakeri, Christiaan C.J.M. Tiberius   +3 more
doaj   +1 more source

Next-generation angular distribution models for top-of-atmosphere radiative flux calculation from CERES instruments: validation [PDF]

Atmospheric Measurement Techniques, 2015
Radiative fluxes at the top of the atmosphere (TOA) from the Clouds and the Earth's Radiant Energy System (CERES) instrument are fundamental variables for understanding the Earth's energy balance and how it changes with time.
W. Su, J. Corbett, Z. Eitzen, L. Liang
doaj   +1 more source

Forecast‐Error Diagnostics in Neural Weather Models

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Deep learning weather prediction models enable efficient forecast‐error diagnostics through auto‐differentiation and low computational cost. We apply grid‐point relaxation and gradient‐based error sensitivity to identify key forecast‐error sources. Results show that medium‐range forecasts in the midlatitudes benefit most from relaxing the stratosphere ...
Uroš Perkan, Gregor Skok, Žiga Zaplotnik   +2 more
wiley   +1 more source

Clinical Outcomes and Acute Exacerbation Incidence in Combined Pulmonary Fibrosis and Emphysema

Respirology, EarlyView.
This multicentre prospective study of 1016 patients demonstrated that CPFE, defined as ≥ 5% emphysema on visual CT assessment, identified a high‐risk phenotype with significantly worse 5‐year survival compared to non‐CPFE IIP patients (51.4% vs. 63.1%) and COPD patients (51.4% vs. 84.0%) and higher acute exacerbation incidence, validating international
Kazuya Tsubouchi, Yasuaki Kotetsu, Tomotsugu Takano, Hiroaki Ogata, Fumiaki Kiyomi, Katsuyuki Ichiki, Shohei Takata, Yasuhiko Kitasato, Hiroshi Ishii, Kazuhiro Yatera, Kei Yamasaki, Masaki Okamoto, Makoto Yoshida, Masayuki Kawasaki, Masaki Fujita, Tomohiro Ogawa, Kazunori Tobino, Eiji Harada, Noriaki Nakagaki, Masashi Komori, Taishi Harada, Hiroshi Wataya, Yoichi Nakanishi, Isamu Okamoto   +23 more
wiley   +1 more source

Evaluation of the Results of Conservative Management of Women with Tuboovarian Abscess; Single Tertiary Center Experience

Gynecology Obstetrics & Reproductive Medicine, 2016
OBJECTIVE: To evaluate results of patients with conservative management of tuboovarian abscess (TOA). STUDY DESIGN: A retrospective cohort study of women with TOA.
Cenk Yasa, Ozlem Dural, Ercan Bastu, Harika Yumru, Omer Demir, Funda Güngör Uğurlucan   +5 more
doaj   +1 more source

A mobile swabbing booth to address Singapore GPs’ concerns about swabber protection: human-centred design during the COVID-19 pandemic

BMC Family Practice, 2021
Background During the COVID-19 pandemic, the Ministry of Health asked Singapore’s private general practitioners (GPs) to perform swab testing in their clinics, but some GPs had concerns about swabber protection. Our aim was to develop a swabbing booth to
Boon See Teo, Esther Li, Yi-Lin Khoo, Michelle Evaristo, Yang Fang, Helen E. Smith   +5 more
doaj   +1 more source

Toku toa, he toa rangatira (My courage is inherited)

DAT Journal, 1969
Primarily relying on critical Kaupapa Māori analysis and comparing the existing and prospective fields of knowledge, this article considers the potential of Indigenous research as a collective of holistic research strategies. It underlines some of the challenges associated with implementing Indigenous knowledge and diverting from disciplinary norms ...
openaire   +3 more sources

Evaluating land–sea linkages using land cover change and coral reef monitoring data: A case study from northeastern Puerto Rico

Remote Sensing in Ecology and Conservation, EarlyView.
Land cover change that leads to increased nutrient and sediment runoff is an important driver of change in coral reef ecosystems. In this study, we combined satellite remote sensing and field monitoring to assess concomitant changes in watershed land cover and coral cover in northeastern Puerto Rico in 2000–2015.
Pirta Palola, Sasha Hills, Simon J. Pittman, Edwin A. Hernández‐Delgado, Antoine Collin, Lisa M. Wedding   +5 more
wiley   +1 more source