133,054 research outputs found
Synthesis of esters derived from 2,3,4-tri-O-benzyl-alpha-D-methylglucoside
No full textThe synthesis of a set of esters obtained from the D-glucose derivative by reaction with several carboxylic acids: benzoic, phenylacetic, acetylsalicylic, 2-(3-bromopropoxy)benzoic acid and 4-(toluene-4-
sulfonylamino)benzoic acid.FCT (Fundação para a Ciência e Tecnologia) and FEDER for financial support. The Bruker Avance
III 400 spectrometer is part of the National NMR network and was purchased under the framework of the National Programme for Scientific Reequipment,
contract REDE/1517/RMN/2005, with funds from POCI 2010 (FEDER) and (FCT). We are also grateful for research grant VZ MSMT-
0021627501, Czech Republic
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Analisis Persepsi Dan Kepuasan Konsumen Terhadap Kualitas Produk Teh Poci
No full textBerkembangnya inovasi yang dilakukan para pesaing, membuat Teh cap Poci berusaha semaksimal mungkin agar dapat bertahan di pasar. Hal ini tidak lepas dari positioning produk tersebut pada konsumen melalui variasi rasa yang ditawarkan. Jika kepuasan konsumen telah dicapai, maka kecenderungan konsumen untuk melakukan pembelian ulang pun semakin besar dan hal ini akan berpengaruh pada kuantitas penjualan. Tujuan penelitian ini adalah untuk menganalisis persepsi konsumen terhadap produk teh Poci dan menganalisis tingkat kepuasan konsumen terhadap teh Poci. Sehingga dari dua hal tersebut, permasalahan yang ada dapat terselesaikan dan diharapkan mampu meningkatkan keuntungan perusahaan. Penelitian ini menggunakan data primer dan data sekunder. Penentuan lokasi dilakukan secara purposive. Penentuan sample menggunakan accidental sampling yang merupakan teknik pengambilan sampel secara non-probability. Jumlah sampel yang diambil adalah 70 responden dengan menggunakan pendekatan Malhorta. Metode analisis yang digunakan adalah analisis deskriptif, analisis persepsi, Importance-Peformance Analysis (IPA), dan Customer Satisfaction Index (CSI). Hasil penelitian ini menunjukkan persepsi konsumen sudah baik disemua atribut kecuali pada atribut gaya hidup (K2). Hasil analisis kesenjangan antara kinerja produk dan harapan terdapat kesenjangan sebesar -0,92 yang artinya secara keseluruhan, kinerja produk teh Cap Poci hampir memenuhi harapan konsumen. Tingkat kesesuaian menunjukkan rata-rata sebesar 78,33 yang nilai tersebut termasuk dalam kategori baik. Skala kualitas produk yang dibagi menjadi kuadaran dalam diagram kartesius, menunjukkan perusahaan harus memperhatikan atribut pada kuadaran A yaitu atribut brand image (K1) dan kandungan bahan perasa berbahaya (C2). Sedangkan pada kuadran B atribut rasa (K5), harga (H1), kepraktisan (H2), kesegaran (H3), dan kandungan bahan pengawet (C1) kinerjanya dianggap sudah memuaskan. Untuk kuadran C, meski dianggap tidak penting oleh responden namun kinerjanya perlu diperhatikan adalah atribut gaya hidup (K2), manfaat (K3), varian rasa (F1), daya simpan (T1) dan warna kemasan (D2). Dan untuk kuadran D meski responden menilai kurang penting namun kinerja atribut aroma (K4) sangat memuaskan. Berdasarkan hasil yang didapat dari perhitungan metode CSI, didapat nilai sebesar 0,82 atau bisa dibaca 82%. Hasil tersebut mengartikan bahwa produk Teh Poci masuk dalam kriteria sangat puas. Secara keseluruhan, konsumen puas terhadap kinerja atribut-atribut kualitas produk Teh Poci. Hingga saat ini produk Teh Poci yang dijual di daerah penelitian telah berhasil memuaskan konsumennya sebesar 82%
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
The use of a geographic information system to increase outdoor tourism
No full textThis project is being carried out within the scope of the TURNOUT
Project Development of Outdoor Tourism of Northern Portugal, POCI-01-0145-ERDF032289, financed by the European Investment Fund Regional Development (FEDER)
through the Operational Program of Competitiveness and Innovation (POCI) and the
Foundation for Science and Technology, I.P. (OE). UNIAG, R&D unit funded by the
FCT – Portuguese Foundation for the Development of Science and Technology, Ministry of Science, Technology and Higher Education; "Project Code Reference:
UIDB/04752/2020".info:eu-repo/semantics/publishedVersio
Scholarly Communication and Publishing Lunch and Learn Talk #11: The ULS Open Access Author Fee Fund
No full textAt the May 2014 talk, you will learn about the ULS Open Access Author Fee Fund--what it is, why we do it, how it works, and how the program is going so far
Recommended from our members
Genes driving potato tuber initiation and growth : identification based on transcriptional changes using the POCI array
No full textThe increasing amount of available expressed gene
sequence data makes whole-transcriptome analysis of certain
crop species possible. Potato currently has the second largest number of publicly available expressed sequence tag (EST) sequences among the Solanaceae. Most of these ESTs, plus other proprietary sequences, were combined and used togenerate a unigene assembly. The set of 246,182 sequences
produced 46,345 unigenes, which were used to design a 44K
60-mer oligo array (Potato Oligo Chip Initiative: POCI). In
this study, we attempt to identify genes controlling and driving the process of tuber initiation and growth by implementing large-scale transcriptional changes using the newly developed POCI array. Major gene expression profiles could be identified exhibiting differential expression at key developmental stages. These profiles were associated with functional roles in cell division and growth. A subset of genes involved in the regulation of the cell cycle, based on their Gene Ontology classification, exhibit a clear transient upregulation at tuber onset indicating increased cell division during these stages. The POCI array allows the study of potato gene expression on a much broader level than previously possible and will greatly enhance analysis of transcriptional control mechanisms in a wide range of potato research areas. POCI sequence and annotation data are publicly available through the POCI database (http://pgrc.ipk-gatersleben.de/poci)
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