Reducing the Costs of Laboratory Instruction through the Use of On-Line Laboratory Instruction

2000 ◽  
Vol 632 ◽  
Author(s):  
David P. Pope ◽  
Helen L. Anderson

ABSTRACTThis paper describes a new program for teaching undergraduate laboratories in the School of Engineering and Applied Science at the University of Pennsylvania based on the idea that laboratories can be taught more efficiently, less expensively, and better through the use of World Wide Web-based technology. This technology is used to help the students prepare themselves before coming to the laboratory by becoming acquainted with the equipment, going through pre-lab exercises and taking pre-lab quizzes, both on the content of the work and on the safety considerations of the laboratory, all through web-based exercises.We have shown that by using web-based teaching tools we can both improve the quality of an undergraduate laboratory while, at the same time, reducing costs. We have accomplished this by making a number of changes in the way laboratory courses are offered:1. We are changing the way students prepare for laboratory periods by putting more information on the web, beginning the laboratories online before class.2. We have instituted an institution-wide system of on-line grading.3. We have shown that the costs of laboratory equipment can be dramatically reduced by using of special software on desktop computers to convert the computers into “virtual instruments”.4. We have estimated the costs of teaching some of our laboratories using the so-called “ingredients method” of cost analysis and have shown that we are accomplishing substantial cost savings, up to 20%, in some cases.

Author(s):  
Peter P. Mykytyn Jr.

Not too many years ago, hardly anyone had heard the terms “Web browser,” “Web,” or “electronic commerce.” Today, the World Wide Web, often referred to as simply the Web and as the Internet, offers almost limitless opportunities for end users to do research, obtain comparative information on different products or services, and conduct business online. Many users today, for example, have experienced the opportunity to visit competing web travel sites, e.g., Travelocity.com and Expedia.com, to price airline fares, obtain car rental information, and make a hotel reservation. More often than not, it seems, end users are also intrigued by the fact that prices for the same flight or car are not necessarily the same at the sites searched; in a way, users have become much more savvy in their selection of products and services. In general, end users can become much more efficient and effective as they conduct business online, and both consumers and businesses can participate in unrestricted buying and selling. Consequently, the Web is changing the way businesses do business, and, of course, it is changing the way many end users conduct their business as well. Electronic commerce (e-commerce) mainly consists of business-to-business (B2B) and business-to-consumer (B2C) types of transactions. According to an e-commerce survey (Survey E-Commerce, 2000) B2B transactions accounted for 80% of all e-commerce and added up to $150 billion in 1999. Further, B2C transactions in the US amounted to about $20 billion that same year. Although there continues to be a “shaking out” period involving dot.com organizations, questions and decisions about whether to develop Web-based storefronts along with the traditional brick and mortar outlets, e-commerce will most likely continue to expand. But while e-commerce grows, maintaining control over on-line transactions and business risks creates challenges that may not be apparent to unsophisticated end users. One of these challenges pertains to the various and assorted legal issues that confront end users as well as the e-commerce businesses where end users shop. Whether buying or selling on the Web or even just establishing one’s home page, legal issues, in addition to providing protection, can also present pitfalls to the unwary. This paper discusses briefly two of the legal issues that can confront today’s end users as they do business over the Web. They are matters dealing with contract law and jurisdictional questions.


Author(s):  
Joko Risanto

Aplikasi sistem antrian yang akan dirancang pada penelitian kali ini berbeda dengan sistem antrian berbasis desktop. Tujuan aplikasi ini ialah memberikan keuntungan bagi kedua belah pihak yaitu institusi dan pengantri. Pengantri tidak kehilangan waktu lama untuk menunggu antrian sedangkan perusahaan (institusi) tidak perlu mempersiapkan ruang tunggu antrian yang terlalu besar. Aplikasi sistem antrian berbasis web memiliki kelebihan yaitu fleksibelitas waktu. Cara kerjanya adalah pengantri cukup masuk ke halaman website antrian yang telah dibuat menggunakan komputer atau smartphone kemudian pengantri memilih menu daftar nomor antrian secara on-line. Pengantri dapat melihat secara realtime nomor antri yang sedang dilayani sehingga dapat memantau kemajuan nomor antrian melalui layar smartphone-nya. Dengan demikian pengantri tidak kehilangan waktu untuk menunggu dan institusi tidak perlu menyediakan ruang tunggu antrian yang besar.   The queuing system application that will be designed in this research is different from the desktop-based queuing system. The Application goals is giving the revenue for all. The queue does not lose a long time waiting for the queue while the company (institution) does not need to prepare the queue waiting room that is too big. Application of web-based queuing system has advantages that is flexibility of time. The way it works is the queue simply go to the queue website page that has been created using a computer or smartphone then the queue to choose the menu list of queue numbers on-line. The queue can see in real time the queue number being served so that it can monitor the progress of the queue number through its smartphone screen. Thus the queue does not lose time waiting and the institution does not need to provide a large queue waiting room.


2020 ◽  
Vol 12 (22) ◽  
pp. 9594
Author(s):  
Leonardo Salvatore Alaimo ◽  
Mariantonietta Fiore ◽  
Antonino Galati

The advent of the Internet has significantly changed consumption patterns and habits. Online grocery shopping is a way of purchasing food products using a web-based shopping service. The current COVID-19 pandemic is determining a rethinking of purchase choice elements and of consumers’ behavior. This work aims to investigate which characteristics can affect the decision of online food shopping during the pandemic emergency in Italy. In particular, the work aims to analyze the effects of a set of explanatory variables on the level of satisfaction for the food online shopping experience. For achieving this aim, the proportional odds version of the cumulative logit model is carried out. Data derive from an anonymous on-line questionnaire administrated during the first months of the pandemic and filled by 248 respondents. The results of this work highlight that people having familiarity with buying food online, that have a higher educational level and consider food online channels easy to use, appear more satisfied for the food online shopping experience. These findings can be crucial for the future green global challenges as online shopping may help to reach competitive advantages for company sustainability.


2014 ◽  
Vol 6 (5) ◽  
pp. 4190-4216 ◽  
Author(s):  
Marie Weiss ◽  
Frédéric Baret ◽  
Tom Block ◽  
Benjamin Koetz ◽  
Alessandro Burini ◽  
...  
Keyword(s):  

1932 ◽  
Vol 12 (4) ◽  
pp. 355-392 ◽  
Author(s):  
C. Leonard Woolley

The tenth season of the Joint Expedition of the British Museum and of the Museum of the University of Pennsylvania began work in the field on 25 November 1931, and closed down on 19 March 1932. In addition to my wife, my staff included Mr. J. C. Rose, who came out as architect for his second season, and Mr. R. P. Ross-Williamson, who acted as general archaeological assistant; Mr. F. L. W. Richardson of Boston, Massachusetts, was also attached to the Expedition to make a contoured survey of the site (pl. LVIII). NO epigraphist was engaged, for the work contemplated was not expected to produce much in the way of inscriptions; but an arrangement was made whereby Dr. Cyrus B.Gordon, epigraphist on the Tell Billah Expedition of the Museum of the University of Pennsylvania, could be called upon to give his services when required; actually a single visit enabled him to do all that was essential. To each of these I am very much indebted. As usual, Hamoudi was head foreman, with his sons Yahia, Ibrahim and Alawi acting under him, and as usual was invaluable; Yahia also was responsible for all the photographic work of the season. The average number of men employed was 180. This relatively small number of workmen, and the shortness of the season, were dictated partly by reasons of finance but more by the nature of our programme, which envisaged not any new departure in excavation but the clearing up of various points still in doubt and the further probing of sites already excavated, with a view to the final publication of the results of former seasons; the work was therefore rather scattered, five different areas being investigated in turn.


2017 ◽  
Author(s):  
Daniele Pierpaolo Colobraro ◽  
Paolo Romano

Due to the fragmentation of microbial information and the several branch of human activities encompassed by microorganism applications, a comprehensive approach for merging information on microbes is needed. Although on line service providers collect several data on microorganisms and provide services for microbial Biological Resource Centres (mBRCs), such services are still limited both in contents and aims. The USMI Galaxy Demonstrator (UGD), an implementation of the Galaxy framework exploiting the XML-based Microbiological Common Language (MCL), is meant to support researchers to make an integrated access to enriched information from microbial catalogues, as well as to help mBRC curators in validating and enriching the contents of their catalogues. Researchers and mBRC curators may exploit the UGD to avoid manual, potentially long, searches on the web and to identify and select microorganisms of interest. UGD tools are written in Python, version 2.7. They allow to enrich the basic information provided by catalogues with related taxonomy, literature, sequence and chemical compound data retrieved from some of the main databases on the basis of the strain number, i.e. the unique identifier for a given culture, and the species names. The data is retrieved by querying database Web Services using either the Simple Object Access Protocol (SOAP) or the Representational State Transfer (REST) access protocols. The MCL format provides a versatile way to archive and exchange data among mBRCs. Galaxy is a well-known, open, web-based platform which offers many tools to retrieve, manage and analyze different kind of information arising from any life science domain. By exploiting Galaxy flexibility,UGD implements some tools and workflows that can be used to find and integrate several information on microorganisms. UGD tools integrate basic information which may support mBRC staff in the insertion of all fundamental strain information in a proper format allowing integration and interoperability with external databases. They also extend the output by adding information on source materials, including species and strain numbers, and retrieve associated microorganisms which use a compound or an enzyme in whatever metabolic pathway by returning the accession number, synonyms, links to external databases, taxon name, and strain number of the requested molecule.


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