scholarly journals VERIFICATION, CALIBRATION AND CONFORMITY ASSESSMENT OF ROTATING LASERS APPLIED IN BUILDING AND SURVEYING MEASUREMENT TASKS

Author(s):  
Ankica Milinković ◽  
Sanja Tucikešić ◽  
Kornelija Ristić

This paper specifies field procedures described by international norm ISO 17123-6, to be adoptedwhen determining and evaluating the quality of rotating lasers and their ancillary equipment whenused in building and surveying measurements for levelling tasks. It will be shown analysis andstatistical tests in order to check the conformity of the equipment with the selected specifications.Also, this paper will promote the leveling systems delivered for complete quality verification ofrotating lasers, as an automated reference laboratory system.

2018 ◽  
Vol 147 ◽  
Author(s):  
K. Mellou ◽  
E. Saranti-Papasaranti ◽  
G. Mandilara ◽  
T. Georgakopoulou

AbstractAusterity might have affected the capacity of public hospitals in Greece to diagnose salmonellosis (laboratory capacity) over the period 2010–2016, as well as the performance of the existing surveillance systems. The scope of this paper is to present data on laboratory capacity over these years, as well as the results of a two-source capture-recapture study (data from Mandatory Notification System and National Reference Laboratory System for Salmonella). The main findings were that: (a) laboratory capacity was high and steady besides the financial crisis, (b) the estimated number of laboratory-confirmed cases (n = 6017, 95% CI 5892–6142) resulted in an incidence rate (7.9 cases/100 000 population) almost twice than that reported by the two systems Mandatory Notification System (MNS); 4.1 and National Reference Laboratory System (NRLS); 4.5 cases/100 000 population, (c) underreporting was high for both systems (MNS; 47.5% and NRLS; 42.8%) and (d) differences by geographical region, size and type of hospital were identified. We suggest that (a) specific interventions are needed to increase completeness of the systems by type of hospital and geographical region, (b) record linkage can help in estimating the disease burden in a more valid way than each system separately and (c) a common electronic database in order to feed one system to the other could significantly increase completeness of both systems.


1963 ◽  
Vol 61 (4) ◽  
pp. 515-529 ◽  
Author(s):  
F. J. Ley ◽  
Barbara M. Freeman ◽  
Betty C. Hobbs

Studies on the use of gamma radiation for the elimination of salmonellae from whole egg, frozen horse-meat, desiccated coconut and bone meal show the extent to which the nature of the medium influences the resistance of these organisms to gamma radiation. There is also a variation in radiation resistance between different serotypes; S. typhi-murium was consistently the most resistant of those examined.Based on experiments with artificially inoculated or naturally contaminated products, and also on dose/survival curve data, the dose requirement for the elimination of salmonellae from frozen whole egg is estimated at 0·5 Mrad., which gives a 107 reduction in numbers of S. typhi-murium; for frozen horsemeat 0·65 Mrad., giving a 105 reduction; and for bone meal between 0·5 and 0·75 Mrad., giving between 105 and 108 reduction. A dose of 0·45 Mrad. appears effective for desiccated coconut, with a reduction of 103, but such a radiation dose affects the quality of this product.We are grateful to Dr E. S. Anderson of the Enteric Reference Laboratory for phage typing and for the provision of a strain of S. typhi-murium for experi ments. Also we thank Dr Joan Taylor of the Salmonella Reference Laboratory for the serological typing of salmonellae, and Miss M. E. Smith and other colleagues of the Food Hygiene Laboratory who carried out the routine bacteriological examination.We wish to thank Mr N. C. Roberts of J. Rannoch Ltd. for his co-operation in the large-scale frozen egg experiment, and also Mrs G. M. Ison of S. Wallace Ltd. in respect of the experiment on frozen horse-meat.


Author(s):  
John H.M. Souverijn

The purpose of the introduction of an automated laboratory system in one format or another is reducing the costs of the laboratory by cutting staff. Also speeding up the performance often is a goal. At the same time it is planned to increase the quality of the work done by using automated labelling and reading of documents. The use of vacuum tubes and the handling of these by the apparatus are raising the safety of the labwork. In this paper many aspects of the daily routines when using a TLA system are discussed. The aspects are collected during the discussions before and after the implementation of the Roche CLAS system in our laboratory. Some consequences were foreseen, and others came unexpectedly. But still the subjects form a point of discussion around the TLA systems. The most important message to be picked up is that one really has to consider all possible problems that could arise from the implementation of TLA.


2010 ◽  
Vol 63 (5) ◽  
pp. 438-440
Author(s):  
Jean M W Chatterton ◽  
Susan McDonagh ◽  
Darrel O Ho-Yen

BackgroundLaboratories traditionally culture toxoplasma tachyzoites in animals for testing and experimental use. This article considers why available cell culture methods are not used more often.AimTo compare HeLa cell culture and animal culture for production of toxoplasma tachyzoites.MethodsIn 2000 HeLa culture replaced animal culture for continuous production of toxoplasma tachyzoites in the Scottish Toxoplasma Reference Laboratory. The performance of animal culture (1994–1998) was compared with HeLa culture (2004–2008). A PubMed search was carried out for 1998 and 2008 to assess the culture methods used in laboratories.ResultsAnimal culture was able to produce higher yields of tachyzoites (109 from a cotton rat peritoneal harvest compared to 107 from a 75 cm2 cell culture flask) but significantly more HeLa cultures were successful (93% versus 84%; p=0.025). There was no difference in the quality of tachyzoites from animal and HeLa cultures as demonstrated by the high levels of success in the dye test. HeLa culture offered significant advantages in flexibility and control. A review of the literature showed no significant change in the method of culture used in laboratories between 1998 and 2008 (p=0.36).ConclusionThe availability of cell culture methods and the increasingly stringent regulations on the use of animals have not resulted in a decline in the use of animal culture. Animals are necessary for certain experiments but many studies could use cell-culture-derived parasites.


Author(s):  
Stephen B. Kennedy ◽  
John B. Dogba ◽  
Christine L. Wasunna ◽  
Philip Sahr ◽  
Candace B. Eastman ◽  
...  

Prior to the Ebola virus disease outbreak in Liberia, the laboratory system was duplicativefragmented and minimally coordinated. The National Reference Laboratory was conceptualisedto address the existing challenges by promoting the implementation of effective and sustainablelaboratory services in Liberia. However, in a resource-limited environment such as Liberiaprogress regarding the rebuilding of the health system can be relatively slow, while efforts tosustain the transient gains remain a key challenge for the Ministry of Health. In this paper, wedescribe the pre-Ebola virus disease laboratory system in Liberia and its prevailing efforts toaddress future emerging infectious diseases, as well as current Infectious diseases, all of whichare exacerbated by poverty. We conclude that laboratory and diagnostic services in Liberiahave encountered numerous challenges regarding its efforts to strengthen the healthcaredelivery system. These challenges include limited trained human resource capacity, inadequateinfrastructure, and a lack of coordination. As with most countries in sub-Saharan Africa, whencomparing urban and rural settings, diagnostic and clinical services are generally skewedtoward urban health facilities and private, faith-based health facilities. We recommend thatstructured policy be directed at these challenges for national institutions to develop guidelinesto improve, strengthen and sustain diagnostic and curative laboratory services to effectivelyaddress current infectious diseases and prepare for future emerging and re-emerging infectiousdiseases.


2008 ◽  
pp. 127-136
Author(s):  
Diána Ungai ◽  
Zoltan Győri

The yield and quality of the sugar beet are mainly determined by level crop production system; therefore the effects of foliar fertilization were studied. Our field trials were carried out in 2005  and 2006 in Hajdúböszörmény, at two experimental sites. In our trials the effects of Biomit Plussz, Fitohorm and Kelcare Cu (having high Cu content) as foliar fertilizers, as well as a fungicide with high sulphur content, Cosavet DF, were studied andcompared. Effects of treatments were studied in four replicates. We took root samples at 4 week intervals, starting in August. The quality of root (sucrose, potassium, sodium and alfa-amino N content) was determined from filtrated beet broth, by an automatic beet laboratory system, called VENEMA. Leaf samples were taken three times in the growing season, element composition was measured by ICP-OES.We found that the crop and the sugar yield were significantly influenced by the foliar treatments both of the two years.


2020 ◽  
Vol 21 (1) ◽  
pp. 452-462
Author(s):  
N. Matsak ◽  
S. Kirilenko ◽  
О. Posashkov

This article considers the issues of forensic structural engineering examination to determine the quality of finishing works. The procedure for carrying out these works has been characterized, attention has been paid to building regulations and rules regarding the execution and acceptance of works on finishing coatings. The mandatory requirements for their quality are given and described. The process of forensic structural engineering conduct has been determined and the main problems and issues that arise while establishing the quality of work performed has been outlined. The main technical characteristics of the construction work on the implementation of the finishing coating, their characteristics are provided. A list of needed documents that are properly executed when ordering the execution of a finishing coating is discussed. Since in practice while conducting forensic structural engineering to determine the quality of finishing works, as well as during surveys, difficulties arise in their production. After all, quality control in construction includes obtaining factual data and comparing them with the established characteristics. The problem of checking the work performed is also considered. Attention is paid to the problem of conducting surveys on such works in order to correctly diagnose and identify technical characteristics of the works being carried out. The principles of conformity assessment are presented, for instance, the functional approach includes such processes as: selection, determination, review and type approval. The main approaches while examining conducted works are revealed. The description of peculiarities when accepting finishing works, as well as mistakes made by builders in performing such works are considered.


2019 ◽  
Vol 134 (2_suppl) ◽  
pp. 37S-42S ◽  
Author(s):  
David Mills ◽  
Sherrie Staley ◽  
Steven Aisu ◽  
Twila Kunde ◽  
Paul Kimsey ◽  
...  

International initiatives to strengthen national health laboratory systems in resource-poor countries are often hampered by unfamiliarity with the country’s health laboratory environment and turnover of international partners during the initiative. This study provides an overview of, and lessons learned from, the use of a laboratory long-term partnership approach (ie, “twinning”) to strengthen the national public health laboratory system in an international setting. We focused on the partnering of the Uganda Ministry of Health Central Public Health Laboratory (CPHL) with the New Mexico State Public Health Laboratory to help the CPHL become Uganda’s national public health reference laboratory (Uganda National Health Laboratory Services [UNHLS] Institute) and leader of its nascent Uganda National Health Laboratory Network (UNHLN). Via twinning, CPHL leadership received training on laboratory leadership and management, quality systems, facility management, and the One Health environmental strategy (ie, that the health of persons is connected to the health of animals and the environment), and drafted a National Health Laboratory Policy, UNHLS Institute business plan, and strategic and operating plans for the UNHLS Institute and UNHLN. The CPHL is now responsible for the UNHLS Institute and coordinates the UNHLN. Lessons learned include (1) twinning establishes stable long-term collaborations and (2) success requires commitment to a formal statement of activities and objectives, as well as clear and regular communication among partners.


2021 ◽  
Vol 9 (4) ◽  
Author(s):  
Xin Wang

The rapid growth of the Internet of Things has broken people’s way of thinking and brought tremendous changes to people’s lives. For key configurations, the Internet of Things is included in the central distribution component of cloud computing, transmission networks, and sensor acceptance techniques. The future Internet of Things is similar to the human body, with different induction and cognitive fields to complete functional tasks, and is a key component of work efficiency and the creation of intelligent control systems. The laboratory is a training ground for colleges and universities to cultivate creative and commercial talents, and has a special mission of cultivating skills and training talents. In recent years, the quality of laboratory knowledge has been greatly improved, but the management model can still meet the needs of teaching, laboratory and technology opening, scientific research, and the development of new and business talents. In the future, university laboratories should learn high-quality design ideas, use Internet of Things technology, Internet technology and ARM technology to build an effective intelligent management system to understand laboratory intelligence. Therefore, this article recommends a local Web-based laboratory construction program, aimed at improving the quality of test information services, while using Internet technology in the laboratory for RFID technology, wireless sensor network and ZigBee technology. Build a common speech and open platform. Based on the comprehensive collection and indepth analysis of test data, the platform provides applications and services for collaboration, sharing and application to fully meet the needs of different users (such as educators, students, and trial administrators), and focus on monitoring And manage university laboratories. In order for the country to better cultivate its engineering talents in the new era, this is important and historically significant.


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