1,721,008 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Bioactive compounds of fruit by-products as potential prebiotics
No full textFruit by-products are generated by the food industries and constitute an important environmental problem. Although these fruit residues are frequently treated as industrial waste, and used mainly for animal feed, they might be good sources of nutrients and bioactive compounds such as dietary fibres and phenolics. These bioactives can stimulate the growth and activity, such as B-vitamin production, of beneficial microorganisms especially lactic acid bacteria and probiotics that are live microorganisms that when ingested in adequate amounts may confer a health benefit on the host. Besides, bioactive compounds may be used to improve the nutritional and functional properties of food products. Thus, bioactives from fruit by-products represent potential prebiotic ingredients which are defined as a substrate that can be selectively utilized by host microorganisms conferring a health benefit.Fil: Albuquerque Cavalcanti de Albuquerque, Marcela. Universidade de Sao Paulo; BrasilFil: Ucella Dantas de Medeiros, Igor. Universidade de Sao Paulo; BrasilFil: Gombossy de Melo Franco, Bernadette Dora. Universidade de Sao Paulo; BrasilFil: Saad, Susana Marta Isay. Universidade de Sao Paulo; BrasilFil: de Moreno, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; ArgentinaFil: Leblanc, Jean Guy Joseph. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentin
Exploring the food industry potential of novel goat milk bar produced by supplementing with rose flower extracts
No full textGoat milk is a highly nutritious and an ideal wholesome food. Today, an increase in demand by
consumers is witnessed towards consuming goat milk, mainly owed to their rich nutraceutical
value. In this study, novel goat milk bar was developed by incorporating rose flower extracts
as an added ingredient (concentration level: 0, 5, 10, 15 and 20%), and by using two different
types of natural sweeteners (cane sugar and palm sugar). The nutrition bars were evaluated
for proximate composition, texture properties and sensory qualities. Results obtained were
encouraging and the new goat milk based nutritional bar formulation with added rose extracts
certainly paves way for future commercial exploitation of the product. Goat milk, owing to its
rich nutraceutical value, and rose extracts owing to the dual functions of a natural antioxidant
and antimicrobial agent, can be beneficial for extending the shelf life of this novel product
under room or refrigerated temperatures, thus attracting better markets
Sustainability of Nutraceuticals and Functional Foods
Get PDFSustainability challenges and issues in nutraceuticals and functional foods arena have influenced
both consumers and the industrial sector. Though the present day can be termed as an era of
nutraceuticals and functional foods, the knowledge on sustainability among the people involved is
limited in the pharma‐food industry. In this chapter, we provide a general overview of this subject,
followed by discussion on the four pillars of sustainability and how these relate to the agricultural
system, food safety and food security. Examples of nutraceuticals products, health benefits incurred,
consumer trends and food choices as well as market values are all examined
Euroopa Merendus- ja Kalandusfondi rakenduskava 2014-2020 projekti nr. 811019790012 lõpparuanne
No full textKala- ja koorikloomajäägid sisaldavad väärtuslikke biopolümeere, millest käesolevas projektis
käsitletakse kollageeni ja kitiini. Projekti eesmärgiks oli välja selgitada, kas on võimalik kala- ja
koorikloomajääkidest saada kvaliteetset toorainet, mida on võimalik kasutada haavakatete ja
nahalaadse tekstiili tootmiseks. Kalajääkidest eraldasime želatiini (kollageenne biopolümeer), mille
omadusi hinnati haavakattematerjali ning nahalaadse tekstiili valmistamise seisukohast. Samuti
andsime hinnangu vähijääkidest eraldatud kitiini ja sellest toodetud kitosaani kvaliteedile.
Projektis osalesid juhtorganisatsioonina Eesti Maaülikool ning partneritena Tartu Ülikool ning Gelatex
Technologies OÜ; samuti tegime koostööd Eesti kalatöötlemisettevõtetega projektiks vajalike
kalajääkide kogumiseks. Eesti Maaülikooli töörühm (projekti vastutav täitja Anu Kisand; Kairi Käiro,
Maidu Silm, Rihard Reissaar; nõustajana prof. Rajeev Bhat) viis läbi kalajääkidest toormaterjalide
eraldamine, Tartu Ülikooli Farmaatsia Instituudi teadurid ja üliõpilased Karin Kogermanni juhtimisel
viisid läbi saadud toormaterjalide karakteriseerimise ning neist toormaterjalidest
haavakattematerjalide valmistamisega seotud uuringud, Gelatex Technologies OÜ meeskond Märt-
Erik Martensi juhtimisel viis läbi želatiinist nahalaadse tekstiilmaterjali valmistamisega seotud
uuringud. Toormaterjalipartiide valmistamine Eesti Maaülikoolis toimus tihedas koostöös
projektipartneritega: tuginedes partnerite tagasisidele varasemate partiide karakteriseerimis- ja
töötlemistulemuste kohta optimeeriti järgnevate partiide valmistamise meetodeid.
Käesolevas projekti lõpparuandes käsitleme nii kala- ja koorikloomajääkidest toormaterjalide
valmistamise etappe kui ka saadud materjalide omadusi ning kasutatavust haavakatete ja nahalaadse
kanga tootmisel.
Loodame, et käesoleva projekti tulemused julgustavad bio- ning ringmajandusest huvitatud osapooli
kaasa mõtlema kalajäätmete väärindamise edendamise suunas.
Projekti läbiviimiseks vajaliku toetuse eraldas Maaeluministeerium Euroopa Merendus- ja
Kalandusfondi rakenduskava 2014-2020 meetme 1.1 „Kalapüügi innovatsioonitoetus” vahenditest
rakendusüksuse PRIA kaudu. Projekt kestis 29.10.2019-15.02.2022.Utilization of fish waste for production of raw materials
applicable in wound dressing and textile industryFish processing industry results in considerable amount of waste materials as processing residuals.
Insted of discarding, alternative use and refining of these waste materials would enhance the gross
gain from the raw material, and, simultaneously, reduce the cost on waste treatment.
Among other constituents, fish industry processing residuals contain valuable biopolymers like
polypeptide collagen and polysaccharide chitin, thus they could serve as source materials for gelatin
and chitosan production. Gelatin is derived from collagen and can be used in multiple applications
including nanomaterials, pharmacy, cosmetics, food industry etc. For example, electrospun nanofiber
mats with antibacterial agents as drug delivery systems provide opportunities for the eradication of
bacterial infections as well as wound healing (Preem et al, 2019). Gelatin is one of the most important
natural biomaterials for the design and construction of electrospun nanofiber-based dressings, due to
its excellent biocompatibility and biodegradability, and great exudate-absorbing capacity (Li et al.,
2022). As another example of gelatine application, fabrication of leather-like textile based on gelatine
nanofiber mats can be considered as environmentally sustainable alternative to direct skin processing
involving toxic substances. Chitin, in turn, is a source material for production of chitosan, a compund
with variety of emerging commercial applications in material industry, agriculture, biomedicin,
pollution treatment etc.
The aim of the project was to elucidate the potential of selected residual byproducts of local fish
industry for preparation of high-quality gelatin suitable for production of nanofiber materials for
wound dressing and leather-like textile applications. Additionally, we conducted a minor study on
chitin purification from crayfish shells, and subsequent chitin processing for chitosan yield.
In the course of current project we produced fish gelatin from the skin of freshwater bream (Abramis
brama), originated from Lake Peipsi, Estonia. The bream skins were obtained as industrial fish filleting
residues. Gelatin production parameters were optimized to gain high-quality gelatin suitable for
production of nanofibers for both wound dressing application and production of textile material. Both
the produced gelatin and resultant nanofiber materials were characterized for physical and chemical
properties, while wound dressing material was additionally tested for pharmaceutical requirements. 62
Business card pockets were crafted as an example of an accessory made of leather-like gelatin-based
textile and specimens of wound patch were fabricated to illustrate the potential wound dressing
application of the fish gelatin produced from residual waste of Estonian fish industry.
Current report in Estonian presents the overview of the project outcomes. Detailed results will be
published in international scientific journals. In Appendix of the report, an overview of the alternative
applications and future scope and of the fish gelatin is presented in English.
The project was conducted by Estonian University of Life Sciences in cooperation with project partners
University of Tartu (Institute of Pharmacy) and Gelatex Technologies OÜ. Project implementation
period was 29.10.2019-15.02.2022. The project was funded by European Maritime and Fisheries Fund
(EMFF) for 2014–2020.Projekti läbiviimiseks vajaliku toetuse eraldas Maaeluministeerium Euroopa Merendus- ja
Kalandusfondi rakenduskava 2014-2020 meetme 1.1 „Kalapüügi innovatsioonitoetus” vahenditest
rakendusüksuse PRIA kaudu
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
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