Results 111 to 120 of about 1,185,498 (335)

Volatility analysis and forecasting of vegetable prices using an ARMA‐GARCH model: An application of the CF filter and seasonal adjustment method to Korean green onions

open access: yesAgribusiness, EarlyView.
Abstract The vegetable market experiences significant price fluctuations due to the complex interplay of trend, cyclical, seasonal, and irregular factors. This study takes Korean green onions as an example and employs the Christiano–Fitzgerald filter and the CensusX‐13 seasonal adjustment methods to decompose its price into four components: trend ...
Yiyang Qiao, Byeong‐il Ahn
wiley   +1 more source

Genetic control of Aedes aegypti: data-driven modelling to assess the effect of releasing different life stages and the potential for long-term suppression

open access: yesParasites & Vectors, 2014
Background Control of the world’s most important vector-borne viral disease, dengue, is a high priority. A lack of vaccines or effective vector control methods means that novel solutions to disease control are essential.
Peter Winskill   +7 more
doaj   +1 more source

The role of regional surveillance networks in enhancing global outbreak reporting [PDF]

open access: yes, 2018
BACKGROUND: The Program for Monitoring Emerging Diseases (ProMED) is a moderated electronic reporting system dedicated to the rapid, global dissemination of outbreak reports.
Carrion, Malwina   +6 more
core   +1 more source

Outbreak Column 22: How to manage an outbreak [PDF]

open access: yesJournal of Infection Prevention, 2017
This outbreak column uses the Health Protection Scotland (HPS) Outbreak Process and Algorithm to examine and reflect on a published outbreak report. The report involved an extensively drug-resistant Acinetobacter baumannii in an oncology unit. High-reliability theory is then used to reflect on how the outbreak was managed and consider how best to ...
openaire   +2 more sources

Threshold conditions for curbing COVID-19 with a dynamic zero-case policy derived from 101 outbreaks in China [PDF]

open access: gold, 2023
Sanyi Tang   +8 more
openalex   +1 more source

The impact of the Russia–Ukraine war on stock prices, profits and perceptions in the food supply chain

open access: yesAgribusiness, EarlyView.
Abstract The Russian invasion of Ukraine in February 2022 had profound consequences for the global economy. As both countries are major commodity exporters, the food value chain was also affected. This study investigates the impact of the invasion on stock prices, profitability and sentiments of agribusinesses along the food supply chain by using an ...
Julia Höhler   +2 more
wiley   +1 more source

The Dynamics of Real-Time Online Information and Disease Progression: Understanding Spatial Heterogeneity in the Relationship [PDF]

open access: yes, 2019
The re-emergence of infectious diseases such as measles and polio is creating logistics challenges for the state authorities to curb their spread and contain them.
Chen, Kuanchin   +2 more
core   +1 more source

Complete genome analysis of African swine fever virus responsible for outbreaks in domestic pigs in 2018 in Burundi and 2019 in Malawi [PDF]

open access: hybrid, 2021
Jean N. Hakizimana   +9 more
openalex   +1 more source

Resilience of Small Beef Packers and the USDA Meat Supply Chain Initiative

open access: yesAgribusiness, EarlyView.
ABSTRACT We focus on the plant‐size resilience relationship among small beef packers during COVID‐19. Defining resilience as the ability to maintain or increase slaughter and non‐resilience as otherwise, we use survey and secondary data to estimate a logit model where resilience is a function of a plant's capacity and age in addition to labor condition
Sunil P. Dhoubhadel   +2 more
wiley   +1 more source

Association between SARS-CoV-2 gene specific Ct values and COVID-19 associated in-hospital mortality

open access: yesFrontiers in Epidemiology
BackgroundSince there are currently no specific SARS-CoV-2 prognostic viral biomarkers for predicting disease severity, there has been interest in using SARS-CoV-2 polymerase chain reaction (PCR) cycle-threshold (Ct) values to predict disease progression.
Mpho L. Sikhosana   +8 more
doaj   +1 more source

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