Results 91 to 100 of about 85,239 (405)

Lost Audio Packets Steganography: The First Practical Evaluation [PDF]

open access: yesarXiv, 2011
This paper presents first experimental results for an IP telephony-based steganographic method called LACK (Lost Audio PaCKets steganography). This method utilizes the fact that in typical multimedia communication protocols like RTP (Real-Time Transport Protocol), excessively delayed packets are not used for the reconstruction of transmitted data at ...
arxiv  

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

Health‐related quality of life following total minimally invasive, hybrid minimally invasive or open oesophagectomy: a population‐based cohort study

open access: yesBJS (British Journal of Surgery), EarlyView., 2020
All patients operated for oesophageal cancer in Sweden from 2013 to April 2018 were identified, and 246 patients were recruited to this population‐based nationwide Swedish study. The results show that longitudinal health‐related quality of life after minimally invasive oesophagectomy was similar to that of the open surgical approach.
F. Klevebro   +4 more
wiley   +1 more source

Mobile telephony and its meanings to consumers: a comparative analysis between Angolans and Brazilians

open access: yesComunicação, Mídia e Consumo, 2015
This article is intended to provoke a comparative reflection on the consumption of mobile telephony in Angola and Brazil. We interviewed consumers in Luanda and São Paulo, the biggest cities of these countries, in order to evaluate the practices related ...
Silvio Koiti Sato
doaj   +1 more source

Audio Spectrogram Factorization for Classification of Telephony Signals below the Auditory Threshold [PDF]

open access: yesarXiv, 2018
Traffic Pumping attacks are a form of high-volume SPAM that target telephone networks, defraud customers and squander telephony resources. One type of call in these attacks is characterized by very low-amplitude signal levels, notably below the auditory threshold.
arxiv  

Early experience of mobile telephony: A comparison of two villages in Papua New Guinea [PDF]

open access: yes, 2011
This paper examines social change following the recent introduction of mobile telephony into rural communities in Papua New Guinea (PNG). It presents the findings of substantial fieldwork conducted in 2009, and suggests ways in which the new technology ...
Watson, Amanda
core   +1 more source

Economic determinants of global mobile telephony growth [PDF]

open access: yes, 2003
This study examines the substitution effect between fixed-line and mobile telephony while controlling for the consumption externality associated with telephone networks.
Madden, Gary G, Coble-Neal, Grant
core   +1 more source

Access to Finance and Innovation in the Canadian Food Processing

open access: yesAgribusiness, EarlyView.
ABSTRACT Innovation is a presumed channel through which finance affects productivity, yet there is limited research testing the relationship between finance and innovation in the food manufacturing sector. The purpose of the paper is to explore the determinants (e.g., financing, R&D, firm size, expenditure on innovation) of the adoption of innovation ...
Getu Hailu, Deepananda Herath
wiley   +1 more source

Long‐term outcomes after paclitaxel‐coated balloon angioplasty of femoropopliteal arteries in Asian patients of the IN.PACT Global Study

open access: yesCatheterization and Cardiovascular Interventions, Volume 100, Issue 7, Page 1273-1283, December 1, 2022., 2022
Abstract Objectives The long‐term data on the use of drug‐coated balloons (DCBs) for femoropopliteal atherosclerotic lesions in the real‐world setting are limited, even more so for racially and geographically distinct populations. The present analysis reports the 5‐year safety and effectiveness outcomes of a DCB in the Asian subset of the prospective ...
Young‐Guk Ko   +7 more
wiley   +1 more source

Automatic Classification of Attacks on IP Telephony

open access: yesAdvances in Electrical and Electronic Engineering, 2013
This article proposes an algorithm for automatic analysis of attack data in IP telephony network with a neural network. Data for the analysis is gathered from variable monitoring application running in the network.
Jakub Safarik   +4 more
doaj   +1 more source

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