epidemiology of bacterial food poisoning pdf

... et al Outbreak of staphylococal food poisoning due to SEA-producing Staphylococcus aureus Foodborne Pathog Dis 2013; 10: 777-81. 9 Boost MV, Wong A, Ho J, ODonoghue M Isolation of methicillin-resistant ... klicenosci, tipizacija, pulzna elektroforeza Original scientific article UDC 615.9:613.22-053.5 Abstract Background: In October 2010 an outbreak of staphylococcal food poisoning occurred in an elementary ... relative risk for each food item In patients we cultivated stools and vomit We performed an onsite audit where the food samples, environmental samples, and swabs of the hands of the cooks were taken

Ngày tải lên: 04/12/2022, 15:05

... CA, USA, 4 Department of Epidemiology and Biostatistics, University of Auckland, Auckland, New Zealand and 5 Departments of Nutrition and Epidemiology, Harvard School of Public Health, Boston, ... immunity, and the presence of a subpopulation of "good infectors." If true, our revision of Edgar Hope-Simpson's theory has profound implications for the prevention of influenza Introduction ... the epidemiology of influenza was not consistent with a highly infectious disease sustained by an endless chain of sick-to-well transmissions [2] Two of the three most recent reviews about the epidemiology

Ngày tải lên: 20/06/2014, 01:20

... When I order food through Lando et al (2006) food delivery services, I can get food poisoning due to the food delivery SR2 Unhygienic food still being delivered to customers by online food delivery ... intention toward OFDS 2.4.10 The effect of trust on food safety risk perception Consumers are not entirely free from food safety risks while consuming food; in fact, consumers’ perceptions of the risk ... intention (SI), the ease of use of the system (EE), performance expectancy (PE), the trust for food delivery service (TR), perception of risks in the process of ordering food online (FSRP), and

Ngày tải lên: 01/10/2024, 20:46

... balance and functionality of the entire food web Below are the possible effects of the rapid decrease of mangrove forests on food chains: a) Primary Production Decline: The loss of mangroves as primary ... explore the roles of mangroves in food chains and the potential effects of their rapid decline on the components within these intricate ecosystems Trang 6II The Roles of Mangroves in Food ChainsFigure ... dense tangle of support roots that gives the trees the appearance of standing on stilts above the water Because of this tangle of roots, the trees can withstand the regular rise and fall of tides,

Ngày tải lên: 28/10/2024, 12:27

... object 3 Length of moving object 4 Length of nonmoving object 5 Area of moving object 6 Area of nonmoving object 7 Volume of moving object 8 Volume of nonmoving object 15 Durability of moving object ... a theory of inventive problem solving which he named TRIZ 3.0 TRIZ: The Theory of Inventive Problem Solving There are a number of laws in the theory of TRIZ One of them is the Law of Increasing ... weight of filled cans, internal pressure of can, rigidity of can construction Primary useful function is to contain beverage Harmful effects include cost of materials and producing can and waste of

Ngày tải lên: 10/12/2013, 03:15

... engaged in rendering professional services If professional advice or other expert assistance is required, the services of a competent professional person should be sought. Library of Congress Cataloging-in-Publication ... quick profit to look good Instead you'll learntrust, patience, and your ability to get out later on You'll learn to trade in terms of the amount of money you have, and in terms of the kinds of percentages ... irrational fears of catastrophe By emptying yourself of ego and fear, you make room to use your untapped potential to trade in terms of a larger objective, independent of the concerns of others Mastery

Ngày tải lên: 10/12/2013, 10:15

... number of people in the car is an example of the car’s state Explain that state refers to the values of the internal attributes of an object that might vary over time, such as the number of passengers ... kitchen and tells the chef the name of the dish, and the chef then cooks another copy of that dish by using another set of the same ingredients The concept of identity can be summed up in a question: ... trademarks or trademarks of Microsoft Corporation in the U.S.A and/or other countries The names of actual companies and products mentioned herein may be the trademarks of their respective owners

Ngày tải lên: 10/12/2013, 16:16

... IP–based network for voice traffic can offer advantages to consumers of reduced costs, simplification, and consolidation due to the proliferation of IP– Trang 6Web ProForum Tutorials http://www.iec.org ... these goals With hundreds of millions of dollars of ATM equipment infrastructure in the United States alone, service providers have recognized that significant economies of scale can be achieved ... platform An example of this type of service is 7/10 digit routing, which would be handled directly by the call control platform Other examples of where the application Trang 8Web ProForum Tutorials

Ngày tải lên: 10/12/2013, 17:15

... http://ece-www.colorado.edu/~pwrelect/book/copies.html (1 of 2) [25/04/2002 16:42:07] Trang 14Fundamentals of Power Electronics Table of Contents Fundamentals of Power Electronics R W Erickson Table of Contents Back 1 Introduction ... Features of the Second Edition ● New material on converter simulation using averaged switch models ● Major revision of material on current mode control, including tables of transfer functions of ... to Chapter 20 ● Chapter 20 Soft Switching A new Section 20.1 compares the turn-on and turn-off transitions of diode, MOSFET, and IGBT devices under the conditions of hard switching, zero-current

Ngày tải lên: 13/12/2013, 01:15

... commercial rearing of various species of marine animals as a food source for all growth stages of bivalve molluscs, larval stages of some crustacean species, and very early growth stages of some fish ... concrete ponds of 10-40 tons of water volume and a water depth of 1.5-2 m 2.3.7 Culture of sessile micro-algae Farmers of abalone (Haliotis sp.) have developed special techniques to provide food for ... supply (e.g at a rate of 1% of the volume of air) CO2 addition furthermore buffers the water against pH changes as a result of the CO2/HCO3- balance Depending on the scale of the culture system,

Ngày tải lên: 15/12/2013, 00:15

... accumulations of wasted food by assuring short retention times of the food particles This is achieved by using high starting densities of 200 rotifer/ml-1 and the distribution of small amounts of feed ... build up of large quantities of live food in a very short period of time Last, but not least, the filter-feeding nature of the rotifers facilitiates the inclusion into their body tissues of specific ... generations of offspring before they eventually die The reproduction activity of Brachionus depends on the temperature of the environment as illustrated in Table 3.1 Trang 5The life cycle of Brachionus

Ngày tải lên: 15/12/2013, 00:15

... outputs, not only in terms of survival, growth and success of metamorphosis of many species of fish and crustaceans, but also with regard to their quality, e.g reduced incidence of malformations, improved ... developed for oral delivery of vitamins, chemotherapeutics and vaccines Furthermore, a better knowledge of the biology of Artemia was at the origin of the development of other Artemia products, ... presence of Artemia, the impact of other parameters (temperature, primary food production, etc.) may at most affect the abundance of the population and eventually cause a temporary absence of the

Ngày tải lên: 15/12/2013, 00:15

... the culture of carp larvae during the first two weeks, the use of decapsulated cysts constitutes a saving of over one third in the amount of Artemia cysts used, compared to the use of live nauplii ... function of the tank size and the density of cysts incubated Excessive foaming can be reduced by disinfection of the cysts prior to hatching incubation and/or by the addition of a few drops of a ... hatchability Hatchability of cysts is largely determined by the conditions and techniques applied for harvesting, cleaning, drying and storing of the cyst material The impact of most of these processes

Ngày tải lên: 15/12/2013, 00:15

... Applications of Artemia for feeding different species 4.3.7 Literature of interest 4.3.8 Worksheets Greet Merchie Laboratory of Aquaculture & Artemia Reference Center University of Gent, Belgium ... Installation of automated systems simplify production techniques in commercial operations, (i.e by the use of a concentrator/rinser; Fig 4.3.2.) that enables fast harvesting of large volumes of Artemia ... live food is suspected to be a source of bacterial infections eventually causing disease problems in larval rearing, microbial contamination should be kept to a minimum During the hatching of Artemia

Ngày tải lên: 15/12/2013, 00:15

... feeding behavior of Artemia by affecting the filtration rate, ingestion rate and/or assimilation: including the quality and quantity of the food offered, the developmental stage of the larvae, ... water level was made of smooth nylon cloth or plastic as to prevent any trapping of the brine shrimp that are foamed off by the effect of the aeration collar Later, a new type of cylindrical filter ... For example, when offered large Artemia instead of freshly-hatched nauplii, the predator larvae need to chase and ingest less prey organisms per unit of time to meet their food requirements

Ngày tải lên: 15/12/2013, 00:15

... and mainly fluctuate in function of food availability, temperature and salinity The size and/or often complete absence of suitable infrastructure makes management of such lakes very difficult, restricting ... soils, often found in mangrove areas When exposed to the air, the pyrite of these soils oxidizes to form sulfuric acid Of course liming of these soils is possible However, the quantities of lime ... Increased bacterial activity also increases the acidity of the bottom The use of organic fertilizers increases the risk of infections This risk can be reduced by composting the manure before use One of

Ngày tải lên: 15/12/2013, 00:15

... three obvious advantages of using wild zooplankton as a live food source for the cultivation of the early larval stages of shrimp or fish species: · As it is the natural food source, it may be ... the harvest of this live food compared to the infrastructure and production costs of the live food items discussed earlier On the other hand, there are also major drawbacks in the use of zooplankton, ... copepodite stages of copepods; · 300 and 500 µm for small water fleas and smaller species of cyclopoid copepods; · 700 µm for adult water fleas of the Daphnia genus, large species of cyclopoid and

Ngày tải lên: 15/12/2013, 00:15

... and life cycle of Daphnia 6.1.2 Nutritional value of Daphnia 6.1.3 Feeding and nutrition of Daphnia 6.1.4 Mass culture of Daphnia 6.1.5 Production and use of resting eggs 6.1.6 Use of Moina 6.1.1 ... reproduction of Daphnia Heterotrophic microflagellates and ciliates up to the size of Paramecium can also be used as food for Daphnia Even detritus and benthic food can be an important food source, ... individual food particles by taste) high concentrations of suspended material can interfere with the uptake of food particles Figure 6.1 Schematic drawing of the internal and external anatomy of Daphnia

Ngày tải lên: 15/12/2013, 00:15

... quantity of ice cream you are willing to produce and offer for sale? Here are some possible answers P r i c e The price of ice cream is one determinant of the quantity supplied When the price of ice ... to the price of the good This relationship between price and quantity supplied is called the law of supply: Other things equal, when the price of a good rises, the quantity supplied of the good ... s The amount of ice cream you supply today may depend on your expectations of the future For example, if you expect the price of ice cream to rise in the future, you will put some of your current

Ngày tải lên: 15/12/2013, 11:15

... sample profile and that of both fast food restaurant profiles gives us a reasonable ground to conclude that our sample profile is a representative of the actual customer profile of both fast food ... means of profit and cash flow. They converted customer’s view of brand performance and customer’s awareness into numerical indicators. Conclusively, one of the most important benefits of service ... constant nature of quality and standard menu of fast food, little time is spent acquiring information about the product. Jekanowski et al (1997) also stated that fast food enable food time and...

Ngày tải lên: 24/09/2012, 17:19