1,079 research outputs found
Coordinating International Standards: The Formation of the ISO
In the article on âStandardizationâ in the 14th edition of the EncyclopĂŠdia Britannica,
Paul Gough Agnew, the long-time Secretary of the American Standards Association (ASA),
argued:
In the flow of products from farm, forest, mine, and sea through processing and
fabricating plants, and through wholesale and retail markets to the ultimate consumer,
most difficulties are met at the transition pointsââpoints at which the product passes
from department to department within a company, or is sold by one company to
another or to an individual. The main function of standards is to facilitate the flow of
products through these transition points. Standards are thus both facilitators and
integrators. In smoothing out points of difficulty, or âbottlenecks,â they provide the
evolutionary adjustments which are necessary for industry to keep pace with technical
advances. They do this in the individual plant, in particular industries, and in industry
at large. They are all the more effective as integrators in that they proceed by simple
evolutionary steps, albeit inconspicuously.2
Albeit inconspicuous, standard setting has been among the nuts and bolts of globalizing
industrial capitalism since its beginning, assuring that things needing to work together fit
from product to product, industry to industry, and country to country. The foci of the first
two of the now 229 âtechnical committeesâ of the non-specialized international standards
organizations that emerged after the two world warsâthe interwar International Standards
Association [ISA] and the post-World War II International Organization for Standardization
[ISO]âare iconic: âScrew Threadsâ and âBolts, Nuts and Accessories.â Over the past two
decades, voluntary standardization processes, invented by turn-of-the-twentieth-century
engineers working in national and international technical committees, have increasingly been
1 We would like to thank Madame Beatrice Frey at ISO for her help in providing us access to original
documents from UNSCC and ISO, and Stacy Leistner at ANSI for his help in providing access to the minutes
from AESC and ASA meetings.
2 Quoted as epigraph of Dickson Reck, ed., National Standards in a Modern Economy, (New York, 1956), v.
3
applied to issues that have little in common with those of fitting one mechanical part to
another, such as work processes (ISO 9000), environmental pollution (ISO 14,000), and
human rights (SA 8000 and the planned ISO 26000)
Brief 9: UNDP: Reviving a Practical Human Development Organization
Constant reform has characterized the UN Development Programme (UNDP) throughout its existence, say the authors of two recent books on UNDP. Change bespeaks an organization ready to adapt but also fundamentally uncertain about its proper role. It teeters between two sets of tensionsâas coordinator of and competitor within the UN development system, and as exerting priorities from the center while seeking to be flexible in its program countries. These tensions should be resolved, and enable UNDP to be the UNâs sustainable human development organization
Feed efficiency and carcass metrics in growing cattle
Some definitions of feed efficiency such as residual energy intake (REI) and residual gain (RG) may not truly reflect production efficiency. The energy sinks used in the derivation of the traits include metabolic live-weight; producers finishing cattle for slaughter are, however, paid on the basis of carcass weight, as opposed to live-weight. The objective of the present study was to explore alternative definitions of REI and RG which are more reflective of production efficiency, and quantify their relationship with performance, ultrasound, and carcass traits across multiple breeds and sexes of cattle. Feed intake and live-weight records were available on 5,172 growing animals, 2,187 of which also had information relating to carcass traits; all animals were fed a concentrate-based diet representative of a feedlot diet. Animal linear mixed models were used to estimate (co)variance components. Heritability estimates for all derived REI traits varied from 0.36 (REICWF; REI using carcass weight and carcass fat as energy sinks) to 0.50 (traditional REI derived with the energy sinks of both live-weight and ADG). The heritability for the RG traits varied from 0.24 to 0.34. Phenotypic correlations among all definitions of the REI traits ranged from 0.90 (REI with REICWF) to 0.99 (traditional REI with REI using metabolic preslaughter live-weight and ADG). All were different (P \u3c 0.001) from one suggesting reranking of animals when using different definitions of REI to identify efficient cattle. The derived RG traits were either weakly or not correlated (P \u3e 0.05) with the ultrasound and carcass traits. Genetic correlations between the REI traits with carcass weight, dressing difference (i.e., live-weight immediately preslaughter minus carcass weight) and dressing percentage (i.e., carcass weight divided by live-weight immediately preslaughter) implies that selection on any of the REI traits will increase carcass weight, lower the dressing difference and increase dressing percentage. Selection on REICW (REI using carcass weight as an energy sink), as opposed to traditional REI, should increase the carcass weight 2.2 times slower but reduce the dressing difference 4.3 times faster. While traditionally defined REI is informative from a research perspective, the ability to convert energy into live-weight gain does not necessarily equate to carcass gain, and as such, traits such as REICW and REICWF provide a better description of production efficiency for feedlot cattle
Large variability in feeding behavior among crossbred growing cattle
The purpose of this study was to define an extensive suite of feeding behavior traits in growing crossbred cattle and to investigate their phenotypic inter-relationships as well as relationships with other performance and efficiency traits. Time-series feeding behavior data, as well as feed intake and liveweight records, were available for 624 growing crossbred cattle, of which 445 were steers and 179 were heifers. Feeding behavior repeatability estimates were calculated using linear mixed models. Additionally, partial Spearman correlations were estimated among 14 feeding behavior traits, as well as between feeding behavior with both performance and feed efficiency traits, using residuals retained from linear mixed models. The marginal contribution of several feeding behavior traits to the variability in metabolizable energy intake (MEI) was also determined. Repeatability estimates of 0.57, 0.36, and 0.48 were calculated for the number of feed events per day, the total time spent feeding per day, and the feeding rate, respectively. Cattle that ate more frequently each day, ate at a faster rate and consumed less energy in each visit to the feed bunk. More efficient cattle fed less often per day and fed for a shorter duration per day; they also had a slower feeding rate and fed for longer in each visit to the feed bunk. Moreover, heavier cattle fed for a longer duration per day had a faster feeding rate, but fed less often per day; heavier animals also fed first in the pen after the fresh feed was offered. The number of feed events per day and feeding time per day together explained an additional 13.4 percentage points of the variability in MEI above that already explained by all of growth rate, liveweight, and backfat depth. The results from the present study suggest that several repeatable time-series-related feeding behavior traits, that are less resource intensive to measure, may have a role as useful predictor traits of important but relatively difficult to record traits, such as feed intake and efficiency
Does sex influence the diagnostic evaluation of autism spectrum disorder in adults?
It is unknown whether sex influences the diagnostic evaluation of autism spectrum disorder, or whether male and female adults within the spectrum have different symptom profiles. This study reports sex differences in clinical outcomes for 1244 adults (935 males and 309 females) referred for autism spectrum disorder assessment. Significantly, more males (72%) than females (66%) were diagnosed with an autism spectrum disorder of any subtype (x2â=â4.09; pâ=â0.04). In high-functioning autism spectrum disorder adults (IQâ>â70; Nâ=â827), there were no significant sex differences in severity of socio-communicative domain symptoms. Males had significantly more repetitive behaviours/restricted interests than females (pâ=â0.001, dâ=â0.3). A multivariate analysis of variance indicated a significant interaction between autism spectrum disorder subtype (full-autism spectrum disorder/partial-autism spectrum disorder) and sex: in full-autism spectrum disorder, males had more severe socio-communicative symptoms than females; for partial-autism spectrum disorder, the reverse was true. There were no sex differences in prevalence of co-morbid psychopathologies. Sex influenced diagnostic evaluation in a clinical sample of adults with suspected autism spectrum disorder. The sexes may present with different manifestations of the autism spectrum disorder phenotype and differences vary by diagnostic subtype. Understanding and awareness of adult female repetitive behaviours/restricted interests warrant attention and sex-specific diagnostic assessment tools may need to be considered
Pattern scaling using ClimGen: monthly-resolution future climate scenarios including changes in the variability of precipitation
Development, testing and example applications of the pattern-scaling approach for generating future climate change projections are reported here, with a focus on a particular software application called âClimGenâ. A number of innovations have been implemented, including using exponential and logistic functions of global-mean temperature to represent changes in local precipitation and cloud cover, and interpolation from climate model grids to a finer grid while taking into account land-sea contrasts in the climate change patterns. Of particular significance is a new approach for incorporating changes in the inter-annual variability of monthly precipitation simulated by climate models. This is achieved by diagnosing simulated changes in the shape of the gamma distribution of monthly precipitation totals, applying the pattern-scaling approach to estimate changes in the shape parameter under a future scenario, and then perturbing sequences of observed precipitation anomalies so that their distribution changes according to the projected change in the shape parameter. The approach cannot represent changes to the structure of climate timeseries (e.g. changed autocorrelation or teleconnection patterns) were they to occur, but is shown here to be more successful at representing changes in low precipitation extremes than previous pattern-scaling methods
Does physical activity counselling enhance the effects of a pedometer-based intervention over the long-term : 12-month findings from the Walking for Wellbeing in the West study
Peer reviewedPublisher PD
Identifying a gender-inclusive pedagogy from Maltese science teachers' personal practical knowledge
Teachers bring with them into the science classrooms their own gendered identitities and their views and perceptions about how boys and girls learn and achieve in science. This paper tries to explore the way in which fourteen Maltese science teachers use their own 'personal practical knowledge' to identify their views about gender and science and create their own individual gender-inclusive pedagogy. The study suggests that the science teachers focus more on the individuality of students and on the social and cultural background of the students in their classrooms rather than on gender. The teachers try to develop pedagogies and assessment practices which take into consideration the personal constructs of individual learners. The ideas for such a gender-inclusive pedagogy emerge from their common-sense experience in the classroom, their training as teachers and are closely interrelated to current ideas of social constructivism
Feed and production efficiency of young crossbred beef cattle stratified on a terminal total merit index1
peer-reviewedFew studies have attempted to
quantify the association between a terminal total
merit index with phenotypic feed and production
efficiency in beef cattle, particularly when feed
efficiency is itself explicitly absent as a goal trait
in the index. The objective of the present study
was to quantify the differences in phenotypic performance for feed intake, feed efficiency, and carcass traits of crossbred bulls, steers, and heifers
differing in a terminal total merit index. A validation population of 614 bulls, steers, and heifers
that were evaluated for feed intake and efficiency
in the same feedlot and subsequently slaughtered
at the end of their test period was constructed.
The Irish national genetic evaluations for a terminal index of calving performance, docility,
feed intake, and carcass traits were undertaken
with the phenotypic records of animals present
in the validation population masked. The validation population animals were subsequently
stratified into four groups, within sex, according
to their terminal index value. Mixed models
were used to quantify the association between
terminal genetic merit and phenotypic performance; whether the associations differed by sex
were also investigated. The regression coefficient
of phenotypic feed intake, carcass weight, carcass conformation, or carcass fat on its respective estimated breeding values was 0.86 kg
dry matter 0.91 kg, 1.01 units, and 1.29 units,
respectively, which are close to the expectation
of one. On average, cattle in the very high terminal index stratum had a 0.63 kg DM/d lower
feed intake, a 25.05 kg heavier carcass, a 1.82 unit
better carcass conformation (scale 1 to 15), and
a 1.24 unit less carcass fat score (scale 1 to 15),
relative to cattle in the very low terminal index
stratum. Cattle of superior total genetic merit
were also more feed efficient (i.e., had a lower energy conversion ratio, lower residual feed intake,
and greater residual gain), had a greater proportion of their live-weight as carcass weight (i.e.,
better dressing percentage) and were slaughtered
at a younger age relative to their inferior total
genetic merit counterparts. This study provides
validation of an all-encompassing total merit
index and demonstrates the benefits of selection
on a total merit index for feed and production efficiency, which should impart confidence among
stakeholders in the contribution of genetic selection to simultaneous improvements in individual
animal performance and efficiency.Department of Agriculture, Food and the Marine, Irelan
"It's a can of worms": understanding primary care practitioners' behaviours in relation to HPV using the Theoretical Domains Framework
Background: The relationship between infection with high-risk human papillomavirus (HPV) and cervical cancer is transforming cervical cancer prevention. HPV tests and vaccinations have recently become available. In Ireland, as elsewhere, primary care practitioners play a key role in prevention. ATHENS (A Trial of HPV Education and Support) aims to develop a theorybased intervention to support primary care practitioners in their HPV-related practice. This study, the first step in the intervention development process, aimed to: identify HPV-related clinical behaviours that the intervention will target; clarify general practitionersâ (GPsâ) and practice nursesâ roles and responsibilities; and determine factors that potentially influence clinical behaviour. A secondary objective was to informally assess the utility of the Theoretical Domains Framework (TDF) in understanding clinical behaviours in an area with an evolving evidence-base.
Methods: In-depth semi-structured telephone interviews were conducted with GPs and practice nurses. The topic guide, which contained open questions and HPV-related clinical scenarios, was developed through literature review and clinical experience. Interview transcripts were content-analysed using the TDF as the coding framework.
Results: 19 GPs and 14 practice nurses were interviewed. The major HPV-related clinical behaviours were: initiating a discussion about HPV infection with female patients; offering/recommending HPV vaccination to appropriate patients; and answering patientsâ questions about HPV testing. While the responsibility for taking smears was considered a female role, both male and female practitioners dealt with HPV-related issues. All 12 theoretical domains arose in relation to HPV infection; the domains judged to be most important were: knowledge, emotion, social influences, beliefs about capabilities and beliefs about consequences. Eleven domains emerged in relation to HPV vaccination, with beliefs about consequences, social influences, knowledge and environmental context and resources judged to be the most important. Nine domains were relevant to HPV testing, with knowledge and beliefs about capabilities judged to be the most important.
Conclusions: The findings confirm the need for an intervention to support primary care practitioners around HPV and suggest it should target a range of theoretical domains. The TDF proved valuable in analysing qualitative data collected using a topic guide not specifically designed to capture TDF domains and understanding clinical behaviours in an area with an evolving evidence-base
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