نتایج جستجو برای: farm heterogeneity

تعداد نتایج: 132579  

Journal: :Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention 2005
W Pickett R J Brison R L Berg J Zentner J Linneman B Marlenga

OBJECTIVES To describe pediatric farm injuries experienced by children who were not engaged in farm work, but were injured by a farm work hazard and to identify priorities for primary prevention. DESIGN Secondary analysis of data from a novel evaluation of an injury control resource using a retrospective case series. DATA SOURCES Fatal, hospitalized, and restricted activity farm injuries fr...

2003
Thomas G. Johnson William J. Brown Kevin O'Grady

This paper presents a model of the farm management process. The model suggests that certain socioeconomic characteristics of farm managers will influence their decision-making process. Several characteristics are hypothesized and tested using multivariate techniques (multivariate analysis of variance, range tests, and multiple comparisons). The analysis indicates that the soil zone, value of ma...

2016
Branko Zajamšek Kristy L. Hansen Con J. Doolan Colin H. Hansen

This paper seeks to characterise infrasound and low-frequency noise (ILFN) from a wind farm, which contains distinct tonal components with distinguishable blade-pass frequency and higher harmonics. Acoustic measurements were conducted at dwellings in the vicinity of the wind farm and meteorological measurements were taken at the wind farm stable atmospheric conditions and was also found to be d...

Journal: :New South Wales public health bulletin 2012
Tony Lower Emily Herde

AIM To describe the pattern of non-intentional farm-related fatalities in Australia for 2003-2006 and examine trends. METHODS Data from the National Coroners Information System were analysed to define all non-intentional farm injury fatalities for the period. RESULTS The incidence of farm fatalities has declined by 44% over the past 20 years from an average of 146 deaths per year to 82 deat...

Nannan Niu Ning Li Xiaozhuan Liu Xing Li Xinjuan Pan Xinjuan Yin Zengli Yu

Dioxin-related compounds are associated with teratogenic and mutagenic risks in laboratory animals, and result in adverse pregnancy outcomes. However, there were inconsistent results in epidemiology studies. In view of this difference, we conducted a systematic review and meta-analysis to examine this association and to assess the heterogeneity among studies. Comprehensive literature searches w...

Journal: :Applied and environmental microbiology 2005
Monica K Borucki Clive C Gay James Reynolds Katherine L McElwain So Hyun Kim Douglas R Call Donald P Knowles

Listeria monocytogenes is a significant food-borne human and veterinary pathogen. Contaminated silage commonly leads to disease in livestock, but the pervasive nature of the bacterium can make it difficult to identify the source of infection. An investigation of bovine listeriosis that occurred on a Pacific Northwest dairy farm ("farm A") revealed that the clinical strain was closely related to...

2012
Jonas Teilmann Jacob Carstensen

Offshore wind farms constitute a new and fast growing industry all over the world. This study investigates the long term impact on harbour porpoises, Phocoena phocoena, for more than 10 years (2001–12) from the first large scale offshore wind farm in the world, Nysted Offshore Wind Farm, in the Danish western Baltic Sea (72× 2.3 MW turbines). The wind farm was brought into full operation in Dec...

2003
John M. Marsh Gary W. Brester

Inflation-adjusted farm prices and farm-wholesale marketing margins for beef and pork have declined over several decades. For example, from 1970 to 1998, real slaughter steer and hog prices declined by 50% and 66%, respectively, while real beef and pork farm-wholesale (FW) marketing margins declined by 57% and 65%, respectively (Figures 1 and 2). These changes have been attributed to declining ...

Journal: :Agriculture 2022

Farm Management Information Systems (FMIS) assists farmers in managing their farms more effectively and efficiently. However, the use of FMIS to support crop cultivation is, at present time, relatively expensive for smallholder farmers. Due some handicaps, providing an that is suitable small-holder a challenge. To analyze this gap, study followed 3 steps, namely: (1) identified commodity resear...

Journal: :Agricultural Economics 2021

Certification in agriculture ensures compliance with tangible standards and should generate economic opportunities for farmers. This study quantifies the variable profit efficiency impacts of organic certification dairy farming across Europe, using farm-level FADN data from 25 countries while accounting heterogeneity through a class splitting model. Four distinct classes farm enterprises operat...

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