Results 61 to 70 of about 53,933 (247)

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

Dilution of Precision in Positioning Systems Using Both Angle of Arrival and Time of Arrival Measurements

IEEE Access, 2020
Dilution of precision (DOP) is a value that can describe the effect on the relationship between measurement error and position determination error.
Binghao Li, Kai Zhao, Xuesong Shen
doaj   +1 more source

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

Solidarity Purchasing Groups in Italy: A critical assessment of their effects on the marginalisation of their suppliers [PDF]

, 2018
Over the last twenty years, Alternative Food Networks (AFN) have become increasingly successful at reducing the length of the chain that connects food production and consumption in an attempt to counteract the impact of the contradictions of the ...
Lara Maestripieri, Giroletti, Toa, Toa Giroletti, Podda, Antonello, Maestripieri, Lara, Antonello Podda   +5 more
core   +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

Extending reliability to intensive longitudinal data with the Kalman filter

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Reliability is central to how researchers approach measurement in standard, group‐based analyses of single‐time‐point data, yet this critical aspect is often overlooked in the analysis of repeated observations. Since its inception, reliability has been a between‐person concept, but we redevelop this notion for within‐person designs by ...
Michael D. Hunter
wiley   +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

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

Counter‐factual simulation highlights requirements for additional management to avert extinction of a relict Tītī/Sooty Shearwater population

Ibis, EarlyView.
Seabirds play key ecological roles but face increasing threats worldwide. Among them, Tītī (Sooty Shearwater) Ardenna grisea are among the most abundant and culturally significant species in the Southern Hemisphere but are also threatened. Kapiti Island, Aotearoa (New Zealand), holds a Tītī colony which, despite eradication of non‐native mammalian ...
Etienne Ossona De Mendez, Brendon J. Dunphy, Kristal E. Cain, Johannes Chambon, Reg Cotter, Elisabeth Daigle, Graeme A. Taylor, Johannes H. Fischer   +7 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