Hubungan Kebisingan Terhadap Fungsi Pendengaran Pekerja Mesin Pembangkit Listrik Tenaga Diesel Di PLTD Suluttenggo Kota Manado

: Noise is unwanted sound heard by ears. Damages of ears usually take place on the tympanic membrane or on the ossicles. Initially, there will be loss of hearing to high frequency noises, and it will gradually decrease to the lowest frequency noise. This study aimed to obtain the relationship of noise and hearing function among diesel power plant workers at PLTD Suluttenggo Manado. This was an analitycal study using a cross sectional design. Samples were 20 workers at PLTD Suluttenggo in Manado. Data were obtained by using questionnaires and examintaion of hearing function with an audiometry. The data were analyzed by using SPSS and the Spearmen test. The results showed that there were hearing impairment in 30% of the workers. According to the bivariate analysis, there was a significant relationship between the level of noise and the hearing impairment among the workers with a p value = 0.015 (p < 0.05). The most frequent hearing impairment among the workers was mixed hearing loss. Conclusion: Workers who worked in a place with high intensity noise had higher risk to develop hearing impairment

Penggunaan Radioisotop Pada Deteksi Dini Penyakit Kanker

: Application of nuclear techniques, both the applications of radiation and radio-isotopes, are very useful since the use of atomic energy program for peaceful purposes was launched in 1953. Positron Emission Tomography (PET) is a new method for imaging the physiological functions of human tissues. Radiant energy emitted by a source of radiation can cause changes in terms of physical, chemical, and biological material in its path. Changes that occur can be controlled by choosing the type of radiation (or neutron) and regulate the dose absorbed, according to the effect needed to be achieved. Based on these properties, the radiation can be used directly such as in radiotherapy, and sterilization. In addition, the radiation emitted by a radioisotope, location and distribution can be detected from outside the body proper, and its activity can be measured accurately; therefore, the use of radioisotopes as tracer is very useful in metabolic studies, as well as tracking techniques and management or treatment of various organs, without having to perform surgery, particularly its use for early detection of cancer cells, or better known methods of cancer with PET

Exploring transdisciplinary education

Because wicked Sustainability Problems (WSPs) are complex, multi-scaled, value-laden, ill-structured, and difficult to address (for example see Lonngren et al., 2016), teams that include engineers and others with expert knowledge are needed to effectively manage WSPs relating to environmental stress and declining ecosystem health, including WSPs stemming from resource scarcity, biodiversity loss, and climate change. How do we educate engineers to successfully engage in such transdisciplinary teams? What is transdisciplinary education? This paper explores aspects of these questions. First, we review areas of education literature relevant to transdisciplinary teaching and learning, including frameworks such as “Threshold Concepts” (Meyer & Land, 2006) and “Empathic Thinking” (Walther et al., 2017), and pedagogies reported in the literature, including “Value Analysis”, and “Learning Communities” (McGregor, 2017). We introduce the design-based research methodology (DBR) as a framework for developing transdisciplinary education, and we offer a review of the engineering education literature relevant to transdisciplinary training. Next, a case study employing DBR is presented. This case, inspired by the work of Tejedor & Segalas (2018a) and others, extends the work presented by Morgan et al. (2018), which reports a novel sustainable development workshop experience for masters-level graduate students, organized and hosted by the Universitat Politècnica de València (UPV) in the spring of 2017. A second workshop was deployed in June of 2018, during which students from a variety of backgrounds and institutions gathered in UPV to create locally relevant, sustainable, conceptual designs for the built environment. The DBR case study focuses on this 2nd workshop, during which survey, interview, and focus group data reflecting both the student and the facilitator experiences, were collected. An initial interpretation of this data is presented. This paper contributes to engineering education for sustainable development because it emphasizes a meta- framework which conceptualizes the development of transdisciplinary education experiences and which has the potential to enable faculty to reflect on and improve novel transdisciplinary experiences

Correlations between rectal and tail base temperature obtained by thermal sensor in dairy calves.

Evento virtual

All grown up? The fate after 15 years of a quarter of a million UK firms born in 1998

The theory of firm growth is in a rather unsatisfactory state. However, the analysis of large firm-level datasets which have become available in recent years allows us to begin building an evidence base which can, in turn, be used to underpin the development of more satisfactory theory. Here we study the 239 thousand UK private sector firms born in 1998 over their first 15 years of life. A first, and quite striking, finding is the extraordinary force of mortality. By age 15, 90% of the UK firms born in 1998 are dead, and, for those surviving to age 15, the hazard of death is still about 10% a year. The chance of death is related to the size and growth of firms in an interesting way. Whilst the hazard rate after 15 years is largely independent of size at birth, it is strongly affected by the current (age 14) size. In particular, firms with more than five employees are half as likely to die in the next year as firms with less than five employees. A second important finding is that most firms, even those which survive to age 15, do not grow very much. By age 15 more than half the 26,000 survivors still have less than five jobs. In other words, the growth paths – what we call the ‘growth trajectories’ – of most of the 26,000 survivors are pretty flat. However, of the firms that do grow, firms born smaller grow faster than those born larger. Another striking finding is that growth is heavily concentrated in the first five years. Whilst growth does continue, even up to age 15, each year after age five it involves only a relatively small proportion of firms. Finally, there are two groups of survivors which contribute importantly to job creation. Some are those born relatively large (with more than 20 jobs) although their growth rate is quite modest. More striking though, is a very small group of firms born very small with less than five jobs (about 5% of all survivors) which contribute a substantial proportion (more than one third) of the jobs added to the cohort total by age 15

A study of patent thickets

Report analysing whether entry of UK enterprises into patenting in a technology area is affected by patent thickets in the technology area

Understanding how immigrant entrepreneurs view business opportunity formation through ethnicity

Given that international research is now consistently showing higher rates of entrepreneurial activity from immigrants above native people, research regarding our understanding of how immigrant entrepreneurs view business opportunity formation remains underdeveloped. Based upon a review of the literature, this chapter examines how ethnicity relates to business opportunity formation through constant interactions. It also introduces the Visual Mixed Embeddedness Framework as an empirical lens for understanding the differences in the business opportunity formation process models between immigrant and native entrepreneurs. By explaining how factors and traits from both home and host countries impact upon the immigrant entrepreneurial business activity process, the framework clearly identifies how the concept of ethnicity influences immigrant entrepreneurial opportunity formation activities in different ways. The framework contributes to existing knowledge by offering a novel method for examining the influence on business opportunity formation of ethnicity, the role of home and host countries and variations between immigrant and native entrepreneurs

High-growth firms and productivity:evidence from the United Kingdom

Abstract There is considerable evidence that high-growth firms (HGFs) contribute significantly to employment and economic growth. However, the literature so far does not adequately explore the link between HGFs and productivity. This paper investigates the empirical link between total factor productivity (TFP) growth and HGFs, defined in terms of sales growth, in the United Kingdom over the period 2001-2010, by examining two related research questions. Firstly, does higher TFP growth lead to HGF status and secondly, does HGF experience help firms achieve faster TFP growth? Our findings reveal that firms in both the manufacturing and services sectors are more likely to become HGFs when they exhibit higher TFP growth. In addition, firms that have had HGF experience tend to enjoy faster TFP growth following the high-growth episodes. Policy implications are drawn based on the self-reinforcing process of the high-growth phenomenon that is revealed by our results