Academic literature on the topic 'Selective collect. eng'
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Journal articles on the topic "Selective collect. eng"
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Kampf, Rudolf, Lenka Ližbetinová, and Kamila Tišlerová. "Management of Customer Service in Terms of Logistics Information Systems." Open Engineering 7, no. 1 (March 20, 2017): 26–30. http://dx.doi.org/10.1515/eng-2017-0006.
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AbstractThis paper is focused on perceiving the logistic services as the competition advantage in frame of the ecommerce. Customers consider their purchases in its complexity and all the logistic services should be designed to meet with customers’ preferences as much as possible. Our aim was to identify and evaluate of customers perceiving in frame of sales proposals offered by e-shops. Collected data of research were processed with the usage of cluster analysis. The aim of this paper is to present the results and conclusions from this research with focus on the elements of logistics services within e-commerce. These outputs can be used for knowledge base of information systems through which enterprises evaluate their decisions and selection of variants. For the enterprise, it is important to appropriate decisions about resource allocation and design of the structure of logistics services were set based on real customer preferences.
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Brown, Gregory P., and Richard Shine. "Nesting snakes (Tropidonophis mairii, Colubridae) selectively oviposit in sites that provide evidence of previous successful hatching." Canadian Journal of Zoology 83, no. 8 (August 1, 2005): 1134–37. http://dx.doi.org/10.1139/z05-115.
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In oviparous species without parental care, nesting females must select an oviposition site that provides incubation conditions favourable to the developing eggs. Abiotic cues (e.g., temperature, moisture) are well known to influence oviposition-site selection, but the potential role of biotic cues (e.g., the presence of eggshells from previous successfully hatched clutches or the scent of egg predators) has rarely been examined in this respect. To test whether nesting females use such cues, we collected gravid keelback snakes (Tropidonophis mairii (Gray, 1841), Colubridae) in tropical Australia and gave them a choice of potential nesting sites in captivity. Females selectively oviposited in sites containing empty eggshells rather than in control sites but did not avoid the scent of a sympatric egg predator (the slatey-grey snake, Stegonotus cucullatus (Duméril, Bibron and Duméril, 1854)); indeed, eggshells of this taxon were as effective as keelback eggs in attracting oviposition. Our study adds to growing evidence that nesting females assess and respond to a diverse array of biotic as well as abiotic cues that predict the probability of successful incubation for their eggs.
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Moro, Marcella Goetz, Marilia Dantas dos Santos Oliveira, Leticia Rodrigues de Oliveira, Simone Aparecida Teixeira, Marcelo Nicolas Muscará, Luis Carlos Spolidorio, and Marinella Holzhausen. "Effects of Selective Versus Non-Selective COX-2 Inhibition on Experimental Periodontitis." Brazilian Dental Journal 30, no. 2 (March 2019): 133–38. http://dx.doi.org/10.1590/0103-6440201902241.
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Abstract In the present study we compared the effects of the selective COX-2 inhibitor etoricoxib with those of the classical non-selective NSAID diclofenac on the inflammatory process and alveolar bone loss in an experimental model of periodontitis in rats. Ninety male Holtzman rats (250 g) were randomly sorted into four experimental groups: Sham+CMC and Ligature+CMC (control) groups which received 0.5% carboxymethylcellulose sodium (CMC) solution; Ligature+Diclofenac and Ligature+Etoricoxib groups which received Potassium Diclofenac and Etoricoxib, respectively, suspended in 0.5% CMC (10 mg/kg/day). At 7, 14 and 21 days after placing ligatures in the cervical region of both the lower right and left first molars, the animals were euthanized. At the end of each period, the mandibles were collected for radiographic examination of alveolar bone loss. In addition, alveolar bone and periodontal ligament tissue samples were collected for COX-2 expression analysis and gingival tissues were collected for measurement of PGE2 contents. Animals with ligature-induced periodontal disease showed significant increased COX-2 gene expression at days 7, 14 and 21 (p<0.05) on alveolar bone and periodontal ligament. However, both treatments resulted in significantly reduced alveolar bone loss when compared to the untreated Ligature group (p<0.05), with no statistical difference between Etoricoxib and Diclofenac Potassium groups. This study shows that both drugs were able to reduce alveolar bone loss after periodontal disease induction.
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Lim, One-bin, Jeong-ah Kim, Si-jeong Song, Heon-seock Cynn, and Chung-hwi Yi. "Effect of Selective Muscle Training Using Visual Emg Biofeedback on Infraspinatus and Posterior Deltoid." Journal of Human Kinetics 44, no. 1 (December 1, 2014): 83–90. http://dx.doi.org/10.2478/hukin-2014-0113.
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Abstract We investigated the effects of visual electromyography (EMG) biofeedback during side-lying shoulder external rotation exercise on the EMG amplitude for the posterior deltoid, infraspinatus, and infraspinatus/posterior deltoid EMG activity ratio. Thirty-one asymptomatic subjects were included. Subjects performed side-lying shoulder external rotation exercise with and without visual EMG biofeedback. Surface EMG was used to collect data from the posterior deltoid and infraspinatus muscles. The visual EMG biofeedback applied the pre-established threshold to prevent excessive posterior deltoid muscle contraction. A paired t-test was used to determine the significance of the measurements between without vs. with visual EMG biofeedback. Posterior deltoid activity significantly decreased while infraspinatus activity and the infraspinatus/posterior activity ratio significantly increased during side-lying shoulder external rotation exercise with visual EMG biofeedback. This suggests that using visual EMG biofeedback during shoulder external rotation exercise is a clinically effective training method for reducing posterior deltoid activity and increasing infraspinatus activity.
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Scherer, Reinhold, Alois Schloegl, Felix Lee, Horst Bischof, Janez Janša, and Gert Pfurtscheller. "The Self-Paced Graz Brain-Computer Interface: Methods and Applications." Computational Intelligence and Neuroscience 2007 (2007): 1–9. http://dx.doi.org/10.1155/2007/79826.
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We present the self-paced 3-class Graz brain-computer interface (BCI) which is based on the detection of sensorimotor electroencephalogram (EEG) rhythms induced by motor imagery. Self-paced operation means that the BCI is able to determine whether the ongoing brain activity is intended as control signal (intentional control) or not (non-control state). The presented system is able to automatically reduce electrooculogram (EOG) artifacts, to detect electromyographic (EMG) activity, and uses only three bipolar EEG channels. Two applications are presented: the freeSpace virtual environment (VE) and the Brainloop interface. The freeSpace is a computer-game-like application where subjects have to navigate through the environment and collect coins by autonomously selecting navigation commands. Three subjects participated in these feedback experiments and each learned to navigate through the VE and collect coins. Two out of the three succeeded in collecting all three coins. The Brainloop interface provides an interface between the Graz-BCI and Google Earth.
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Jones, T. P., L. J. Reynolds, K. A. BéruBé, and R. J. Richards. "Microscopy of Airborne Particulates from Opencast Coal Pits." Microscopy and Microanalysis 6, S2 (August 2000): 414–15. http://dx.doi.org/10.1017/s1431927600034565.
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In the UK, ambient levels of PM10 are approximately 20-30 micrograms/m3 but may increase 10-fold during pollution episodes. There have been concerns expressed about the possible detrimental health effects of breathing particulates generated by opencast coal mining in the United Kingdom (e.g. Glyneath in Wales, 1997). However these fears have not been confirmed due to lack of adequate monitoring, characterisation, and source apportionment of PM10. We have collected airborne particulates from several sites within ‘Park Slip West’ coal opencast pit, which is situated in the south of Wales, UK. This collection constitutes the first half of a project to collect and characterise particles, followed by an assessment of their bioreactivity. The characterisation includes Field Emission SEM, SEM-EDAX, TEM-EPXMA, ICPMS and Image Analysis.Particles were collected using high-volume air samplers operating at pre-calibrated flow rates of 30L/minute, attached to PM10 selective-inlet heads.
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Jaffer, Maysoon R. "Contamination of Local Laying Hen’s Egg Shell with Salmonella Serotypes." Iraqi Journal of Veterinary Medicine 37, no. 1 (June 30, 2013): 13–16. http://dx.doi.org/10.30539/iraqijvm.v37i1.318.
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Fifty locally laying hen’s eggs random samples were collected from different markets of Baghdad city in order to investigate the presence of Salmonellae Spp. in shell of those eggs. The samples were collected during the period from March 2012 to May 2012.The samples were directly transferred to the Food hygiene laboratory and analyzed immediately without further storage.The isolation and identification methods include: (pre-enrichment) culture stage by peptone water then, (Selective enrichment) culture stage by selenite broth after that culturing on sold (Selective media) which was Bismuth Sulphate agar. The biotyping by using API strip according to the API 20E miniaturized identification system for Salmonella SPP.. The isolated Salmonella strains were transferred on TSI agar to undergone sereotyping at the Institute of Public Health,Baghdad,Iraq. Data revealed that 15 out of the total 50 (30%) of the eggs samples were contaminated with Salmonella spp. Salmonella typhimurium and Salmonella enteritidis were the two serotypes that have been found in this study. Nine from 15 (60%) of the isolates was belong to Salmonella enteritidis serotypes while 6 from 15 (40%) of the isolates was belong to Salmonella typhimuriumserotype.
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Wong, Billy, and Khandker M. Nurul Habib. "Effects of accessibility to the transit stations on intercity travel mode choices in contexts of high speed rail in the Windsor–Quebec corridor in Canada." Canadian Journal of Civil Engineering 42, no. 11 (November 2015): 930–39. http://dx.doi.org/10.1139/cjce-2014-0493.
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Main objective of this paper is investigating the role of transit station accessibility on intercity travel mode choices in contexts of a proposed High Speed Rail. The study area is the Quebec–Windsor corridor, which is the most important corridor in Canada and one of the most important corridors in North America. A web-based joint revealed preference – stated preference survey is used to collect data for empirical investigation. To contribute further to travel survey methods, an innovative social media based data collection approach is taken. As opposed to explicit sample frame-based sample selection approach, it applies a reverse procedure of open sample frame-based data collection. The web-based survey is spread through social media groups (that are open in sense that information of all individuals are not known explicitly) and the collected responses are screened to match with population distributions. Results prove the potential of such data collection approach in extracting representative samples of the population of concern. The collected dataset, which has close representation of the population, is used to estimate discrete mode choice model (Nested Logit model) of intercity mode choices. Empirical model reveals that intercity travellers are more concerned about access to and egress from transit stations than the main in-vehicle travel while selecting intercity travel modes. The result of this investigate imply that transit station accessibility should be given careful consideration for the success of any innovative travel mode, e.g., high speed rail.
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Özlü, Serdar. "Comparative Staging of Blastoderm Development at Oviposition in Eggs from Layer and Broiler Grandparent Breeder Flocks." Turkish Journal of Agriculture - Food Science and Technology 9, no. 6 (July 8, 2021): 1232–36. http://dx.doi.org/10.24925/turjaf.v9i6.1232-1236.4348.
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Recent decades were characterized by genetic selection of broiler and layer chickens for enhanced growth rate and meat yield or intensified egg production, respectively. It is to be expected that genetic selection for various traits would also influence embryo development. The effects of different strains of chickens on egg weight, stage of blastoderm, variation of the blastoderm development and Pearson correlation between egg weight and stage of blastoderm at oviposition were studied in the current study. Hatching eggs were randomly collected from three layer chicken lines (Layer-1, Layer-2, and Layer-3) raised in Poultry Research Institute, and two broiler grandparent flocks (Female and Male) from Aviagen Anadolu. The age of all chicken lines was 36 week. A total of 30 eggs in each line were used, and egg weight and the blastoderm development of the embryos were determined at oviposition time. At the end of the research, significant difference in egg weights (P0.05). The mean stage of blastoderm development in male grandparent line eggs significantly lower than other four genetic lines (P
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Glas, J. J., J. van den Berg, and R. P. J. Potting. "Effect of learning on the oviposition preference of field-collected and laboratory-reared Chilo partellus (Lepidoptera: Crambidae) populations." Bulletin of Entomological Research 97, no. 4 (July 24, 2007): 415–20. http://dx.doi.org/10.1017/s0007485307005135.
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AbstractRecent studies show that Vetiver grass, (Vetiveria zizanioides (L.) Nash), may have potential as a dead-end trap crop in an overall habitat management strategy for the spotted stem borer, Chilo partellus (Swinhoe) (Lepidoptera: Crambidae). Vetiver grass is highly preferred for oviposition, in spite of the fact that larval survival is extremely low on this grass. The oviposition behaviour of female Chilo partellus moths was investigated by determining the amount and size of egg batches allocated to maize and Vetiver plants and studying the effect of rearing conditions and oviposition experience on host plant selection. Two-choice preference tests were used to examine the effect of experience of maize (a suitable host plant) and Vetiver plants on the oviposition choice of C. partellus. For both field-collected and laboratory-reared moths, no significant differences were found in the preference distributions between the experienced groups. It is concluded that females do not learn, i.e. that they do not change their preference for Vetiver grass after having experienced oviposition on either maize or this grass, which supports the idea that trap cropping could have potential as a control method for C. partellus. Differences observed between field-collected and laboratory-reared moths in the amount and size of egg batches laid on maize and Vetiver grass indicate that data obtained from experiments with laboratory-reared insects should be treated with caution.
Dissertations / Theses on the topic "Selective collect. eng"
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Mota, Renata Cristina. "Programas de minimização de resíduos em instituições públicas de ensino superior : a coleta seletiva da UNESP - Campus Rio Claro (SP) /." Rio Claro : [s.n.], 2007. http://hdl.handle.net/11449/95675.
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Orientador: Ana Tereza Caceres CortezBanca: Tânia Maria de Campos Leite
Banca: Jayme de Oliveira Campos
Resumo: A produção de lixo vem aumentando de forma preocupante em todo o mundo, estando este fato intrinsecamente ligado aos hábitos de consumo e ao estilo de vida das pessoas. Este é um dos graves problemas da atualidade e qualquer ação que vise sua solução, ou pelo menos sua minimização, é bem vinda. Assim, é dever de toda instituição pública, dentre elas as Universidades, desenvolver relacionados à questão da produção e destinação final dos resíduos sólidos. O presente trabalho tem o intuito de diagnosticar a atual situação de Programas de Coleta Seletiva desenvolvidos por algumas das principais instituições públicas de ensino superior do Estado de São Paulo, dando destaque ao Programa de Coleta Seletiva já em andamento na UNESP - Campus Rio Claro. Também é objetivo do trabalho entender a dinâmica deste Programa e de suas relações com a comunidade local, procurando formular ações que propiciem sua manutenção e continuidade, assim como a criação de novos Programas de minimização de resíduos.
Abstract: The production of garbage is increasing in a dangerous way all over the world, and this fact is inherent to the consumption habits and the people's lifestyle. Nowadays, this is one of the greatest problems and any kind of action to solve or lessen it, is welcome. Thus, it is a duty for all the public institutions, including universities, to develop programs related to garbage production and destination. This research intends to diagnose the current situation of the Recycling Programs developed by some of the main public universities in the State of São Paulo, mainly the program that is happening in UNESP - Campus Rio Claro. It is also the objective of this research to know this program's dynamic and its relations with the local community, in order to formulate actions that assure its maintenance and continuation, as well as the creation of new recycling programs.
Mestre
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Cantóia, Sílvia Fernanda. "Educação ambiental e coleta seletiva em Presidente Prudente-SP : avaliando seus resultados no Conjunto Habitacional Ana Jacinta /." Presidente Prudente : [s.n.], 2007. http://hdl.handle.net/11449/96783.
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Orientador: Antonio Cezar LealBanca: Encarnita Salas Martin
Banca: Marcelino de Andrade Gonçalves
Abstract: To achieve the proposals of methodology, this research had as basis the project of public policies Enviromental Education and integrated managment of the solid residues in Presidente Prudente-SP: development of methodologies for selected collection, garbage usage and work organization, which started in 2001 ending in 2005, being carried out in partnership by FCT/Unesp, Town Hall of Presidente Prudente, Presidente Prudente's Development Company and other public and private institutions, with FAPESP support. It was aimed to evaluate the results of the public policies project and its impacts in the community education and in the selected collection of recyclabe and reusable residues of the Inhabitated Complex Ana Jacinta, where about 20.000 people live, intending to contribute to the theorical-methodological debate of how to give effectviness to actions of enviromental education and selected collection in partnership with the Public Bureau, public institutions, schools and civil bodies. The achieved methodological procedures were: attendance of the actions of the public policies project, selected collection in the district; analisys of the types and composition of the collected residues; and interviews with the district's population to identify its participation and obtain information that could guide actions for the collection expansion in town. The research also tried to analys e the educational role of the State-owned School Francisco Pessoa as a producer and transmitter agent of information in the process of social engagement of the district towards enviromental topics and its stillness in relation to the educational campaigns in the district and in the school.
Mestre
Books on the topic "Selective collect. eng"
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Einstein, Andrew J. Radiation Considerations. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199392094.003.0034.
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Radiation considerations are an integral part of the practice of nuclear cardiac imaging. Concern regarding radiation has increased in recent years, reflected in statements by many professional societies, and likely attributable both to rapid growth in use of nuclear cardiology as well as high doses received by some nuclear cardiology patients. The fundamental principles of medical radiological protection are justification (ensuring that the right test is performed for the right patient at the right time), optimization (ensuring that the test is performed in the right manner), and dose limitation, which while applicable to healthcare workers is not operative regarding patients. Three "As" facilitate and serve as an organizing principle for justification: awareness, appropriateness, and audit. Awareness incorporates knowledge of the benefits and risks of testing involving radiation and effective communication of these to the patient. Appropriateness in nuclear cardiology can be assessed using the American College of Cardiology's appropriateness criteria. Methods that have been demonstrated to improve appropriateness include using a collaborative learning model, a point-of-order decision support tool, and a multifaceted intervention including threatened loss of insurance coverage. A variety of strategies should be considered for optimization to ensure patient-centered imaging. These including strategic selection of both the protocol, e.g. selecting a stress-first protocol and performing stress-only imaging in patients without a high pre-test probability of abnormal findings on stress imaging, or using PET, and also the administered activity, e.g. by using weight-based dosing and/or software- or hardware-based advances in camera technology. Special considerations are required for pregnant, nursing, and pediatric patients.
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Adrian, Loretan, ed. Theologische Fakultäten an europäischen Universitäten: Rechtliche Situation und theologische Perspektiven. Münster: Lit, 2004.
Find full textBook chapters on the topic "Selective collect. eng"
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Marmolejo-Rebellón, Luis Fernando, Edgar Ricardo Oviedo-Ocaña, and Patricia Torres-Lozada. "Organic Waste Composting at Versalles: An Alternative That Contributes to the Economic, Social and Environmental Well-Being of Stakeholders." In Organic Waste Composting through Nexus Thinking, 147–64. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36283-6_7.
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AbstractComposting is one of the most widely used technologies for the recovery and use of organic waste from municipal solid waste (MSW); however, its implementation in some developing countries has mostly been ineffective. This chapter documents the experience of the composting of municipal organic waste in the urban area of the municipality of Versalles, Valle del Cauca, Colombia. Within the locality, composting of organic waste occurs at an MSW management plant (SWMP), after being separated at the source and selectively collected. The information presented was generated through collaborative research projects, conducted with the cooperation of Camino Verde APC (a community-based organisation providing sanitation services) and Universidad del Valle (Cali, Colombia). The evaluations undertaken show that (i) within the locality, high rates of separation, at the source, in conjunction with selective collection and efficient waste sorting and classification processes in the SWMP, have significantly facilitated the composting process; (ii) the incorporation of locally available amendment or bulking materials (e.g. star grass and cane bagasse) improves the physicochemical quality of the processed organic waste and favours development (i.e. a reduction in process time), leading to an improvement in product quality; (iii) the operation, maintenance and monitoring of the composting process can be carried out by previously trained local human talent; and (iv) revenues from the sale of the final product (compost) are not sufficient to cover the operating costs of the composting process. Despite this current lack of financial viability, the application of technology entails environmental benefits (e.g. a reduction in the generation of greenhouse gases) and social benefits (e.g. employment opportunities), which, given the conditions in the municipality studied, highlight the relevance of this technological option.
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Mbandi, Josephine, and Michael Kisangari. "Data Collection Using Wireless Sensor Networks and Online Visualization for Kitui, Kenya." In African Handbook of Climate Change Adaptation, 1735–47. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_151.
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AbstractKenya is a developing country with a population of 47,213,282 people this comprises of 56% low-income earners. Small businesses and crop production represent 23% of the income within the country, which is at risk as soils become less productive. Various factors have led to this, climate change and land overuse being leading causes. Without adaptation, the rural to urban migration will continue to increase.Through Internet of Things (IoT) and specifically wireless sensor networks, we can change how we obtain and consume information. Small-scale farmers can collect data and in exchange receive useful information about their soils, temperature, humidity, and moisture content hence make better choices during crop production. Connected end devices bring in data, which is currently sparse in relation to small-scale farming. IoT will enable analysis and informed decision-making including crop selection, support equipment, fertilizers, irrigation, and harvesting. The cloud-based analysis will provide information useful for policy making and improvement.This chapter presents a wireless sensor network (WSN) in mesh topography using XBee communication module, communication, and raspberry pi, combined with a cloud-based data storage and analysis. We successfully set up a proof of concept to test a sensor node that sends information to a RPi and onto an online visualization platform.
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Mohammed, S. G., M. Halliru, J. M. Jibrin, I. Kapran, and H. A. Ajeigbe. "Impact Assessment of Developing Sustainable and Impact-Oriented Groundnut Seed System Under the Tropical Legumes (III) Project in Northern Nigeria." In Enhancing Smallholder Farmers' Access to Seed of Improved Legume Varieties Through Multi-stakeholder Platforms, 81–96. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8014-7_6.
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AbstractTropical Legumes III project as a development intervention focused on enhancing smallholder farmers’ access to seeds of improved groundnut varieties using multi-stakeholder platforms. Open Data Kit was used to collect information from the platform members using structured questionnaires and focus group discussions (FGDs). Descriptive statistics and adoption score were used to analyze the data. Selection of appropriate project location, reliable beneficiaries, timely supply of seeds, and training on good agronomic practices (GAPs) and effective supervision on production were the major thrusts of the TL III project. The results indicated that the IP members accrued additional income ranging from $214 to $453 per hectare for wet season. The same increase in beneficiaries’ income was reported per hectare for dry season from $193 to $823, respectively; all due to the TL III intervention. The results further indicated increasing access by farmers to services (e.g., improved seeds, extension, credit facilities, market, etc.) and enhanced productivity (farm size, pod and haulm yields). Findings further revealed an average increased market price of 21.5% and 18% for dry and wet season groundnut production, respectively. There was high adoption score (78%) of improved seeds and other GAPs. The study recommends the need to replicate similar interventions in other areas. Continued capacity building on GAPs and improved business management skills to Extension Agents and farmer groups will sustain the successes achieved by the TL III project.
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Benson, Janel E., and Elizabeth M. Lee. "First-Generation Students at Selective Colleges." In Geographies of Campus Inequality, 23–46. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190848156.003.0002.
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Chapter 2 provides a portrait of first-generation students who attend selective colleges by placing them in comparison with continuing-generation students, the dominant demographic group on these campuses. This chapter focuses on students’ high school backgrounds—the ways they get to college—and then discusses briefly the ways this background leads them into an initial institutional sorting process. While first-generation students share a similarly strong high school academic profile as their continuing-generation counterparts, they come of age within very different contexts. The authors show that some of these differences have implications for how first-generation students identify connections on campus during the first few weeks of college. Moreover, first-generation students find themselves in somewhat different campus geographies than continuing-generation at the end of their first year of college. First-generation are more likely to be Disconnected than their continuing-generation peers and less embedded in campus geographies connected to mainstream social life (Play Hard and Multisphere).
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Keller, Morton, and Phyllis Keller. "The College." In Making Harvard Modern. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195144574.003.0026.
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What place did Harvard College have in the modern University, with its expansive central administration, research-driven faculty, ambitious and high-powered professional schools? A much more important one than this litany of potential threats might suggest. The College remained the most conspicuous and prestigious part of the University. It produced the most generous donors; it outclassed its rivals in attracting the most sought-after students; it exemplified Harvard in the public mind. And it shared in the worldly ambience of the late-twentieth-century University. For decades, Harvard College admissions was a battleground over who would be accepted and on what grounds access would be granted. The admission of Jews was a touchstone issue in the conflict between the Brahmin and meritocratic impulses from the 1920s to the 1950s. Then another problem came to the fore: how to choose a freshman class from a swelling number of qualified applicants. As selection became ever more complex and arcane, the sheer size and quality of the applicant pool enabled the dean of admissions and his staff, rather than the faculty, to define the terms of entry. The result was that classes were crafted to be outstanding in more than purely academic-intellectual terms. Intellectual superstars were a small group of near-certain admits. After that, a solid level of academic ability set an admissions floor, above which character, extracurricular activities, artistic or athletic talent, “legacy” status, and geographical diversity figured in the admissions gene pool. After the 1960s, diversity came to embrace race and gender. Chase Peterson, who was dean of admissions during the tumultuous years from 1967 to 1972, thought that during his time the criteria for selection broadened to include tenacity, perseverance, having learned something deeply and well, social generosity, intellectual openness, and strength of character. A statement on admissions desiderata in the 1990s included “honesty, fairness, compassion, altruism, leadership, and initiative” and stressed: “We place great value in a candidate’s capacity to move beyond the limits of personal achievement to involvement in the life of the community at large.” One of Dean of Admissions Wilbur Bender’s 1950s ideal admits, a “Scandinavian farm boy who skates beautifully,” had better have headed his local skating club or taught skating to inner-city youth if he hoped to get into Harvard at the century’s end.
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Taber, Douglass. "Selective Reactions of Alkenes." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0023.
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Fabio Doctorovich of the Universidad de Buenos Aires reported (J. Org. Chem. 2008, 73, 5379) that hydroxylamine in the presence of an Fe catalyst reduced alkenes such as 1, but not ketones or esters. Erick Carreira of ETH Zürich developed (Angew. Chem. Int. Ed. 2008, 47, 5758) mild conditions for the hydrochlorination of mono-, di- and trisubstituted alkenes. Ramgopal Bhattacharyya of Jadavpur University established (Tetrahedron Lett. 2008, 49, 6205) a simple Mo-catalyzed protocol for alkene epoxidation. Nitro alkenes are of increasing importance as acceptors for enantioselective organocatalyzed carbon-carbon bond formation. Matthias Beller of the Universität Rostock found (Adv. Synth. Cat. 2008, 350, 2493) that an alkene such as 7 was readily converted to the corresponding nitroalkene 8 by exposure to of NO gas. The reaction could also be effected with NaNO2/HOAC. Two complementary protocols for Rh-catalyzed alkene hydroformylation have been reported. Xumu Zhang of Rutgers University devised (Organic Lett. 2008, 10, 3469) a ligand system that cleanly migrated the alkene of 9, then terminally hydroformylated the resulting monosubstituted alkene, to give 10. Kian L. Tan of Boston College designed (J. Am. Chem. Soc. 2008, 130, 9210) a ligand such that the hydroformylation of the internal alkene of 11 was directed to the end of the alkene proximal to the directing OH, delivering 12. Several other methods for the functionalizing homologation of alkenes have been put forward. Chul-Ho Jun of Yonsei University assembled (J. Org. Chem. 2008, 73, 5598) a Rh catalyst that effected the oxidative acylation of a terminal alkene 13 with a primary benzylic alcohol, to give the ketone 14. For now, this approach is limited to less expensive alkenes, as the alkene, used in excess, is the reductant in the reaction. The other procedures outlined here require only stoichiometric alkene. Yasuhiro Shiraishi of Osaka University devised (Organic Lett. 2008, 10, 3117) a simple photoprocess for adding acetone to a terminal alkene 13 to give the methyl ketone 14, in what is presumably a free radical reaction.
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Voyle, Nicola, Maximilian Kerz, Steven Kiddle, and Richard Dobson. "Bio-informatics and psychiatric epidemiology." In Practical Psychiatric Epidemiology, 359–72. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198735564.003.0021.
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This chapter highlights the methodologies which are increasingly being applied to large datasets or ‘big data’, with an emphasis on bio-informatics. The first stage of any analysis is to collect data from a well-designed study. The chapter begins by looking at the raw data that arises from epidemiological studies and highlighting the first stages in creating clean data that can be used to draw informative conclusions through analysis. The remainder of the chapter covers data formats, data exploration, data cleaning, missing data (i.e. the lack of data for a variable in an observation), reproducibility, classification versus regression, feature identification and selection, method selection (e.g. supervised versus unsupervised machine learning), training a classifier, and drawing conclusions from modelling.
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Romer, Daniel, and Claudia Szobot. "Prevention of Substance Use Disorders." In Treating and Preventing Adolescent Mental Health Disorders, edited by Charles P. O’Brien, 459–76. Oxford University Press, 2017. http://dx.doi.org/10.1093/med-psych/9780199928163.003.0019.
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This chapter reviews the major theories of drug use progression and their implications for prevention in adolescents, including the gateway model, the general liability model, and the developmental cascade model. Prevention interventions designed for universal (e.g., school-based, environmental), selective (e.g., family-focused), and indicated approaches (e.g., targeting heavy college drinkers) are reviewed, including programs that include all three levels (e.g., Family Check-Up, Triple-P). All of these approaches have been found to have both short-term and long-term efficacy. Challenges remain in disseminating these interventions on a wide scale, and many communities employ weaker programs when stronger ones are available. Potential pathways to achieve greater adoption of effective programs are outlined.
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Kumar, Himanshu, Nagarajan Ganapathy, Subha D. Puthankattil, and Ramakrishnan Swaminathan. "Emotion Recognition in EEG Signals Using Decision Fusion Based Electrode Selection." In Studies in Health Technology and Informatics. IOS Press, 2021. http://dx.doi.org/10.3233/shti210139.
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Emotions are essential for the intellectual ability of human beings defined by perception, concentration, and actions. Electroencephalogram (EEG) responses have been studied in different lobes of the brain for emotion recognition. An attempt has been made in this work to identify emotional states using time-domain features, and probabilistic random forest based decision fusion. The EEG signals are collected for this from an online public database. The prefrontal and frontal electrodes, namely Fp1, Fp2, F3, F4, and Fz are considered. Eleven features are extracted from each electrode, and subjected to a probabilistic random forest. The probabilities are employed to Dempster-Shafer’s (D-S) based evidence theory for electrode selection using decision fusion. Results demonstrate that the method suggested is capable of classifying emotional states. The decision fusion based electrode selection appears to be most accurate (arousal F-measure = 77.9%) in classifying the emotional states. The combination of Fp2, F3, and F4 electrodes yields higher accuracy for characterizing arousal (65.1%) and valence (57.9%) dimension. Thus, the proposed method can be used to select the critical electrodes for the classification of emotions.
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Frey, Ulrich. "Data." In Sustainable Governance of Natural Resources, 86–108. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780197502211.003.0003.
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This chapter presents data from three databases. These are the CPR database, which contains case studies on fisheries and irrigation systems worldwide; the NIIS database, which collects case studies on Nepalese irrigation systems; and the IFRI database, which contains forest management case studies worldwide. Afterward, the individual steps of data preparation—check for correctness, selection, recoding, weighting, and splitting—are presented. Especially important is assigning individual variables to the twenty-four success factors by three individual raters. At the end of this process, machine-readable, analyzable data set variants are available. By describing this process in detail, transparency and reproducibility are provided.
Conference papers on the topic "Selective collect. eng"
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Esfahani, Ehsan Tarkesh, and V. Sundararajan. "Using Brain Computer Interfaces for Geometry Selection in CAD Systems: P300 Detection Approach." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48775.
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The purpose of this paper is to explore the potential of brain-computer interfaces as user interfaces for CAD systems. The paper describes experiments and algorithms that use the BCI for selecting different surface of geometrical objects in the CAD systems using the P300 wave. The P300 (P3) wave is an event related potential (ERP) elicited by infrequent, stimuli (target faces flashing). Users wear an electroencephalogram (EEG) headset and try to select a target face of an object. Different faces of the object randomly flash which make the flashing of target face, an infrequent event. The EEG headset collects brain activity from 14 locations on the scalp. The data is analyzed with independent component analysis (ICA) and the discrete wavelet transforms (DWT) to detect the P300 component in the signal. The flashing face which causes the P300 component in the EEG signal is classified as the target face. Using a linear discriminant analysis, the target face is classified correctly with an average accuracy of 73.9%.
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Hotz, Nico. "Non-Concentrated Solar Collector for Solarthermal Chemical Reactions." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65433.
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The purpose of this study is the proof that non-concentrating solar-thermal collectors can supply the thermal energy needed to power endothermic chemical reactions such as steam reforming of alcoholic (bio-) fuels. Traditional steam reformers require the combustion of up to 50% of the primary fuel to enable the endothermic reforming reaction. Our goal is to use a selective solar absorber coating on top of a collector-reactor surrounded by vacuum insulation. For methanol reforming, a reaction temperature of 220–250°C is required for effective methanol-to-hydrogen conversion. A multilayer absorber coating (TiNOX) is used, as well as a turbomolecular pump to reach ultra-high. The collector-reactor is made of copper tubes and plates and a Cu/ZnO/Al2O3 catalyst is integrated in a porous ceramic structure towards the end of the reactor tube. The device is tested under 1000 W/m2 solar irradiation (using an ABB class solar simulator, air mass 1.5). Numerical and experimental results show that convective and conductive heat losses are eliminated at vacuum pressures of <10−4 Torr. By reducing radiative losses through chemical polishing of the non-absorbing surfaces, the methanol-water mixture can be effectively heated to 240–250°C and converted to hydrogen-rich gas mixture. For liquid methanol-water inlet flow rates up to 1 ml/min per m2 of solar collector area can be converted to hydrogen with a methanol conversion rate above 90%. This study will present the design and fabrication of the solar collector-reactor, its testing and optimization, and its integration into an entire hydrogen-fed Polymer Electrolyte Membrane fuel cell system.
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Ringwelski, Beth, Vidura Jayasooriya, and Dharmakeerthi Nawarathna. "Label Free Cell Purification Following Electroporation." In 2020 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dmd2020-9037.
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Abstract Cell transfection by electroporation is a biological assay that has been utilized to inject exogenous molecules (e.g.: RNA, DNA and protein) into live cells. Recently, electroporation has been utilized in developing cell therapy for cancer (e.g., CAR T-cell). One of the major drawbacks in current electroporation methods is the cell death during the process. These dead cells can be detrimental, if injected back to the patients. Current cell filtering methods are unable purify T-cells following electroporation, this is due to the lack of unique biomarkers that target the apoptosis and necrosis of T-cells. To address this issue, we have developed a method using dielectrophoresis and microfluidics, where no prior labeling is needed to isolate dead cells from live cells. Upon electroporation, the cell sample has to be flowed through the microfluidic chip where a selective electric field is applied through specially designed electrodes so that the dead cells are trapped on the electrodes, and the live cells are able to flow through and are collected at the end. Results after purification of the cells using our method reveal that it is possible to achieve ∼100% of purity in filtering of the live cells. This method presents a viable solution to a critical concern regarding CAR T-cell manufacturing. This paper presents an extended study of the variation of efficacy in the design with the time from the electroporation.
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Real, Daniel, and Nico Hotz. "Novel Non-Concentrated Solar Collector for Solar-Powered Chemical Reactions." In ASME 2013 7th International Conference on Energy Sustainability collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/es2013-18382.
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The purpose of this study is the proof that non-concentrating solar-thermal collectors can supply the thermal energy needed to power endothermic chemical reactions such as steam reforming of alcoholic (bio-) fuels. Traditional steam reformers require the combustion of up to 50% of the primary fuel to enable the endothermic reforming reaction. Our goal is to use a selective solar absorber coating on top of a collector-reactor surrounded by vacuum insulation. For methanol reforming, a reaction temperature of 220–250°C is required for effective methanol-to-hydrogen conversion. A multilayer absorber coating (TiNOX) is used, as well as a turbomolecular pump to reach ultra-high. The collector-reactor is made of copper tubes and plates and a Cu/ZnO/Al2O3 catalyst is integrated in a porous ceramic structure towards the end of the reactor tube. The device is tested under 1000 W/m2 solar irradiation (using an ABB class solar simulator, air mass 1.5). Numerical and experimental results show that convective and conductive heat losses are eliminated at vacuum pressures of <10−4 Torr. By reducing radiative losses through chemical polishing of the non-absorbing surfaces, the methanol-water mixture can be effectively heated to 240–250°C and converted to hydrogen-rich gas mixture. For liquid methanol-water inlet flow rates up to 1 ml/min per m2 of solar collector area can be converted to hydrogen with a methanol conversion rate above 90%. This study will present the design and fabrication of the solar collector-reactor, its testing and optimization, and its integration into an entire hydrogen-fed Polymer Electrolyte Membrane fuel cell system.
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Hotz, Nico. "Micro- and Nano-Structured Catalytic Reactor for Biofuel Reforming in a Solar Collector." In ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/es2012-91338.
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In this study, a novel flow-based method is presented to place catalytic nanoparticles into a reactor by solgelation of a porous ceramic consisting of copper-based nanoparticles, silica sand, ceramic binder, and a gelation agent. This method allows for the placement of a liquid precursor containing the catalyst into the final reactor geometry without the need of impregnating or coating of a substrate with the catalytic material. The so generated foam-like porous ceramic shows properties highly appropriate for use as catalytic reactor material, e.g., reasonable pressure drop due to its porosity, high thermal and catalytic stability, and excellent catalytic behavior. The catalytic activity of micro-reactors containing this foam-like ceramic is tested in terms of their ability to convert alcoholic biofuel (e.g. methanol) to a hydrogen-rich gas mixture with low concentrations of carbon monoxide (up to 75% hydrogen content and less than 0.2% CO, for the case of methanol). This gas mixture is subsequently used in a low-temperature fuel cell, converting the hydrogen directly to electricity. A low concentration of CO is crucial to avoid poisoning of the fuel cell catalyst. Since conventional Polymer Electrolyte Membrane (PEM) fuel cells require CO concentrations far below 100 ppm and since most methods to reduce the mole fraction of CO (such as Preferential Oxidation or PROX) have CO conversions of up to 99%, the alcohol fuel reformer has to achieve initial CO mole fractions significantly below 1%. The catalyst and the porous ceramic reactor of the present study can successfully fulfill this requirement. The results of the present study confirm that product gas mixtures with up to 75% hydrogen content and less than 0.2% CO content can be achieved, which is an excellent result. The reactor temperature can be kept as low as 220°C while obtaining a methanol conversion of up to 70%. The used PROX catalyst showed selective CO conversion rates above 99.5% for temperatures between 80 and 100°C in presence of large molar fractions of H2O and CO2.
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Wiechnik, Cory, Raymond Boivin, Jim Henderson, and Mark Bowman. "A Case Study of Pipeline Route Selection and Design Through Discontinuous Permafrost Terrain in Northwestern Alberta." In 1996 1st International Pipeline Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/ipc1996-1949.
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As the natural gas pipeline system in Western Canada expands northward, it traverses the discontinuous permafrost zone. As the ground temperature of the frozen soil in this zone is just below freezing, it can be expected that within the design life of a pipeline the permafrost adjacent to it will melt due to the disturbance of the insulating cover by construction activities. Differential settlement at the thawing frozen/unfrozen soil interfaces gives rise to pipeline strain. Based on the calculated settlement and resulting strain level, a cost effective mechanical or civil design solution can be selected to mitigate the differential settlement problem. Since these design solutions can be costly, it is desirable to combine them with a pipeline route that traverses the least amount of discontinuous permafrost terrain while minimizing the overall length of the pipeline. This paper will detail the framework utilized to select the routing for a package of pipeline projects in northwestern Alberta. The process began with a review of the state of the art in permafrost engineering in order to benefit from past experiences. Airphoto interpretation and terrain mapping were performed for potential pipeline corridors. Preliminary routing options through the corridors were chosen from this mapping information that minimized both pipeline length and amount of permafrost terrain traversed. The next step was to collect field data for each route that would determine the extent and characteristics of the permafrost. Essentially two sets of field data were collected: geophysical mapping of representative sections of each terrain type and physical sampling of the permafrost. Boreholes were located following field interpretation of the geophysical data to ensure they were optimally located to help in calibration of the geophysical data. Permafrost samples were tested in the laboratory for thaw settlement. Anticipated thaw settlements were used to estimate pipe strain levels. This information was then extrapolated for the entire proposed pipeline route and used to finalize both the pipeline route and the differential settlement design options. Monitoring sites will be instrumented to obtain data on the longer term performance of the pipeline, as well as for assessing permafrost degradation effects on the right-of-way such as settlement and impact on drainage patterns. It is believed that the increased front end effort will result in lower operating costs and an overall reduced life-cycle cost. This basic design methodology can be applied to any project that traverses discontinuous permafrost terrain.
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Gupta, Mansi, Nitish Kulkarni, Raghuveer Chanda, Anirudha Rayasam, and Zachary C. Lipton. "AmazonQA: A Review-Based Question Answering Task." In Twenty-Eighth International Joint Conference on Artificial Intelligence {IJCAI-19}. California: International Joint Conferences on Artificial Intelligence Organization, 2019. http://dx.doi.org/10.24963/ijcai.2019/694.
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Every day, thousands of customers post questions on Amazon product pages. After some time, if they are fortunate, a knowledgeable customer might answer their question. Observing that many questions can be answered based upon the available product reviews, we propose the task of review-based QA. Given a corpus of reviews and a question, the QA system synthesizes an answer. To this end, we introduce a new dataset and propose a method that combines informational retrieval techniques for selecting relevant reviews (given a question) and "reading comprehension" models for synthesizing an answer (given a question and review). Our dataset consists of 923k questions, 3.6M answers and 14M reviews across 156k products. Building on the well-known Amazon dataset, we additionally collect annotations marking each question as either answerable or unanswerable based on the available reviews. A deployed system could first classify a question as answerable before attempting to generate a provisional answer. Notably, unlike many popular QA datasets, here the questions, passages, and answers are extracted from real human interactions. We evaluate a number of models for answer generation and propose strong baselines, demonstrating the challenging nature of this new task.
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Liu, Qi, Guifeng Wang, Hongke Zhao, Chuanren Liu, Tong Xu, and Enhong Chen. "Enhancing Campaign Design in Crowdfunding: A Product Supply Optimization Perspective." In Twenty-Sixth International Joint Conference on Artificial Intelligence. California: International Joint Conferences on Artificial Intelligence Organization, 2017. http://dx.doi.org/10.24963/ijcai.2017/97.
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Crowdfunding is an emerging Internet application for creators designing campaigns (projects) to collect funds from public investors. Usually, the limited budget of the creator is manually divided into several perks (reward options), that should fit various market demand and further bring different monetary contributions for the campaign. Therefore, it is very challenging for each creator to design an effective campaign. To this end, in this paper, we aim to enhance the funding performance of the newly proposed campaigns, with a focus on optimizing the product supply of perks. Specifically, given the expected budget and the perks of a campaign, we propose a novel solution to automatically recommend the optimal product supply to every perk for balancing the expected return of this campaign against the risk. Along this line, we define it as a constrained portfolio selection problem, where the risk of each campaign is measured by a multi-task learning method. Finally, experimental results on the real-world crowdfunding data clearly prove that the optimized product supply can help improve the campaign performance significantly, and meanwhile, our multi-task learning method could more precisely estimate the risk of each campaign.
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El-Hannouny, Essam, Douglas Longman, Steven McConnell, Xingbin Xie, Ming-Chai Lai, Ramesh Poola, and Michael Goetzke. "Spray Characterization From Common Rail Injection System for Use in Locomotive Engines." In ASME 2007 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/icef2007-1637.
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New U.S. Environmental Protection Agency regulations are forcing locomotive manufacturers and railroads to reduce pollutant emissions from locomotive operation. Locomotive engines will be required to meet the applicable standards at the time of original manufacture. A variety of emissions-reduction technologies can be used, such as alternative fuels, additives in lubricant oil, and aftertreatment technologies (e.g., selective catalytic reduction and particulate traps). Emissions reduction can also be accomplished inside the cylinder, using advanced diesel fuel injectors that have a significant impact on the quality of spray and charge preparation before engine combustion and subsequent events. High-speed optical measurements have been collected at elevated ambient pressures for sprays from a modular common rail injection system at Argonne National Laboratory in order to investigate spray structure and dynamics. High-speed laser imaging was used to explore the effects of various parameters on the spray structure. The experimental parameters included were ambient gas density, injection pressure, number of spray holes, injection strategy, and internal orifice size. Spray symmetry and structure were found to depend significantly on the nozzle geometry or manufacturing variances and the operating conditions.
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Sleiti, A. K. "Hydrogen and Fuel Cell Education." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12314.
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This paper is on educational program focused on Hydrogen and Fuel Cell Technology (HFCT) in Engineering Technology Department (ENT) jointly with the Florida Solar Energy Center (FSEC) at University of Central Florida (UCF). The HFCT Program intends to support the need for educated graduates that comprise the next generation workforce needed for research, development, and demonstration activities in government, industry, and academia. The program includes the development and delivery of undergraduate courses at Engineering Technology Department and FSEC within the ABET accredited Bachelor of Science in Engineering Technology program. The mode of course offering is both in class and on line, which will increase the number of students. The program facilitates are located at College of Engineering and Computer Science and at FSEC. The Florida Solar Energy Center has been conducting hydrogen and fuel cell research for 25 years and FSEC has dedicated facilities and a selection of unique laboratory equipment that will be made available to the students for this project. These attributes will allow the students to be trained on the state-of-the-art equipment and facilities. Both ENT and FSEC faculties will participate in the teaching and training of the prospective students.
Reports on the topic "Selective collect. eng"
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Arjaliès, Diane-Laure, Julie Bernard, and Bhanu Putumbaka. Indigenous peoples and responsible investment in Canada. Western Libraries, Western University, September 2021. http://dx.doi.org/10.5206/092021ip26.
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This report explores the engagement between Indigenous Peoples and the Responsible Investment (RI) industry in Canada. Based on interviews with stakeholders, observation of industry conferences, and documentary evidence collected during the first year of the pandemic (i.e., March 2020-March 2021), this report offers an overview of the current discussions regarding Indigenous Peoples in the RI industry. RI is an investment approach that incorporates Environmental, Social, and Governance (ESG) factors into the selection and management of investments (RIA, 2021). In 2019, the Responsible Investment Association (RIA) estimated that assets in Canada managed using one or more RI strategies2 were worth $3.2 trillion, or 61.8 per cent, of total Canadian assets under management (RIA, 2020).
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Quak, Evert-Jan. K4D’s Work on the Indirect Impacts of COVID-19 in Low- and Middle- Income Countries. Institute of Development Studies (IDS), June 2021. http://dx.doi.org/10.19088/k4d.2021.093.
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This report is not an in-depth nor exhaustive analysis of the many indirect impacts of the pandemic on LMICs. The content is purely based on the requests from FCDO to the K4D services on this topic, and as such can only give an illustrative overview of the findings from these requests. Furthermore, insights are also taken from the data that K4D collects for each request based on the information provided by advisers and FCDO (e.g. purpose of the request, adviser’s cadre), hence, the data is limited to the information available to the K4D team at the time of the request and the level of details available may vary from one request to the other. The selection of relevant K4D outputs on the pandemic’s indirect impacts was based on an extensive search in the K4D repository on titles and research questions. The Annex shows all K4D outputs included in this report. The purpose of this report is to inform FCDO about some of the specifics of their requests on the indirect impacts of COVID-19, in general. This report will also be used as input for a K4D-FCDO learning event that takes place on the 6th of July 2021. During the event learning and evidence, trends will be discussed and how evidence and learning informed decision-making on policy and programming.