scholarly journals Food labels: consumer’s information or consumer’s confusion

OCL ◽  
2018 ◽  
Vol 25 (2) ◽  
pp. D202 ◽  
Author(s):  
Sylvette Monier-Dilhan

This paper synthesizes findings of published research on the impact of food labels on consumers’ willingness to pay and focuses on the consumers’ rationales when deciding to purchase organic food. The first issue refers to one aspect of the proliferation of quality labels in the agro-food sector: the coexistence of two signs on one product and the consequences of this coexistence on the value of each sign. In the context of the competition between national brands and private labels through public quality labels, it has been shown that the willingness to pay for a quality sign decreases when it is combined with another one on the same product. The second concern is a two-fold issue: the characterization of “organics food consumers” in terms of socio-demographics characteristics and consumers’ purchasing motives. The more consistent result is that consumers with higher levels of education are more likely to purchase organic products. The three main reasons for buying organic products are considerations related to health, product quality, and environmental protection. The proliferation of signs about quality is a topical issue related to the emergence of sustainability issues that highlight labels linked to agro-ecological practices. The question of the effectiveness of the informational role of labels remains relevant.

2003 ◽  
Vol 25 (4) ◽  
pp. 477-483 ◽  
Author(s):  
Joseph Baker ◽  
Jennifer Robertson-Wilson ◽  
Whitney Sedgwick

The current study examined whether the distribution of published research papers in the field of sport psychology followed the Lotka-Price Law of scientific productivity. All authors who had published articles in five sport psychology journals from 1970 to 2000 were considered. The impact of those authors was determined by the total number of published papers in all journals. Results provided limited support for the Lotka-Price Law; however, it appeared that the field of sport psychology was less elitist than other fields. Although these findings suggest that productivity in this field is similar to that in other fields of science, more research is needed to shed light on the role of the eminent scientist and the average researcher in the advancement of knowledge in sport psychology.


2019 ◽  
Vol 14 (1) ◽  
pp. 31-47 ◽  
Author(s):  
Lucio Cappelli ◽  
Fabrizio D’ascenzo ◽  
Roberto Ruggieri ◽  
Francesca Rossetti ◽  
Alessandra Scalingi

Abstract The paper is part of a broader research project studying consumer’s attitude towards “Made in Italy” products through empirical investigation. The research questions addressed are: 1) Does recognition in terms of the qualitative characterization of “Made in Italy” products exist? And if so, 2) are people willing to pay, in quantitative terms, a premium price for such products? From a theoretical standpoint, the research seeks to fill a gap in the literature, since studies combining the “made in” characteristic with measured “willingness to pay” are neither conventional nor numerous. The specific purpose of this contribution is to analyze the relationship between the purchase of “Made in Italy” products, recognition of the quality and willingness to pay a premium price on the part of Italian consumers, reporting the results of an empirical research. The survey involved a total of 315 Italian consumers while three commodity sectors were analysed: food, fashion and mechanical automation. The results confirm that there is a propensity to purchase “Made in Italy” products which does not seem to be a matter of irrational consumer behaviour. “Made in Italy” is confirmed as a conceptual category consolidated in the minds of consumers, since there is clear recognition of these products in terms of qualitative characterization. These and other results of the research (which need to be confirmed and extended with further empirical investigations) should prove relevant both to the literature and as indications for public policies and the strategies of companies operating in the sectors examined. For the literature this research can be useful because there is no complete overview of quantitative data on the premium price. It can also serve for public policies because quantification of the premium price can influence the choices and strategies of companies. This study shows a significant willingness to pay a premium price for the three sectors analyzed, although the premium price is not homogeneous: while the measures range mostly between 10 and 30%, higher values appear for products in the food sector.


2020 ◽  
Vol 8 (2) ◽  
pp. 173
Author(s):  
Liliana Simões-Silva ◽  
Ricardo Araujo ◽  
Manuel Pestana ◽  
Isabel Soares-Silva ◽  
Benedita Sampaio-Maia

Factors influencing the occurrence of peritoneal dialysis (PD)-related infections are still far from fully understood. Recent studies described the existence of specific microbiomes in body sites previously considered microbiome-free, unravelling new microbial pathways in the human body. In the present study, we analyzed the peritoneum of end-stage kidney disease (ESKD) patients to determine if they harbored a specific microbiome and if it is altered in patients on PD therapy. We conducted a cross-sectional study where the peritoneal microbiomes from ESKD patients with intact peritoneal cavities (ESKD non-PD, n = 11) and ESKD patients undergoing PD therapy (ESKD PD, n = 9) were analyzed with a 16S rRNA approach. Peritoneal tissue of ESKD patients contained characteristically low-abundance microbiomes dominated by Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes. Patients undergoing PD therapy presented lower species richness, with dominance by the Pseudomonadaceae and Prevotelaceae families. This study provides the first characterization of the peritoneal microbiome in ESKD patients, bringing new insight to the human microbiome. Additionally, PD therapy may induce changes in this unique microbiome. The clinical relevance of these observations should be further explored to uncover the role of the peritoneal microbiome as a key element in the onset or aggravation of infection in ESKD patients, especially those undergoing PD.


Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 2450-2450
Author(s):  
Cathrin Klingeberg ◽  
Anna Lena Illert ◽  
Nicolas Schneider ◽  
Christian Peschel ◽  
Cornelius Miething ◽  
...  

Abstract Anaplastic large cell lymphomas (ALCL) are a subgroup of aggressive Non-Hodgkin-Lymphomas mainly affecting children and young adults. In 60 % of systemic ALCLs, a translocation t(2;5) (p23;q35) resulting in NPM-ALK fusion gene expression is found. The constitutively activation of ALK tyrosine kinase expressed from the NPM-promoter causes increased proliferation and inhibition of apoptosis thereby promoting cell survival and tumorigenesis. Immunphenotypic characterization of human ALCLs revealed highly CD30-positive cells of T- or Null-Cell-origin and resulted in promising clinical trials with CD30-coupled antibodies. However, the impact of CD30 on diseases development as well as NPM-ALK signal transduction in course of disease remains unclear and appropriate mouse models to answer these questions are missing. In this regard, we established a retroviral murine bone marrow (BM) transplantation model resembling a human ALCL-like T-cell neoplasia. Therefore we use an inducible Cre/loxP system where NPM-ALK expression is controlled and expressed in a special type of early T-cells. For generation of this vector, we inserted a floxed translational ‘stop-cassette’ between the retroviral promoter MSCV-LTR and the NPM-ALK cDNA, which guaranties specific expression of NPM-ALK only in cells, where the enzyme Cre-recombinase is expressed. Recognition of the loxP-sites by Cre-recombinase leads in our system to deletion of the stop-cassette and consequently NPM-ALK expression. Using different Cre-expressing cell types allowed us to study pathogenesis of ALCL in more detail. In our recent study, we infected bone marrow of transgenic mice expressing Cre-recombinase under the control of the Lck-promotor with our MSCV-Stop-NPM-ALK-IRES-EGFP (MSNAIE) vector and transplanted it into lethally irradiated C57Bl6 recipient mice. With a latency of 4-5 months, these mice developed Thy1.2-positive lymphomas and died from neoplastic infiltration of bone marrow and lymphatic organs with T-cells. Immunphenotypic analyses confirmed T-Cell origin of the lymphomas and showed importantly highly CD30-expression. Staining of the different T-cell-subpopulations demonstrated highest NPM-ALK expression in immature CD4/CD8 double negative T-cells and not fully differentiated CD4/CD8 double positive T-cells. Interestingly, FACS-staining of the proliferation marker Ki-67 revealed highest expression in CD4/CD8 double negative T-cells, in contrast to the other subpopulations where Ki-67 is less detected. Therefore we hypothesized, that the lymphoma initiating cell (LIC) must be within this early T-cell population. Most interestingly we found highest CD30-expression just in the same CD4/CD8 negative T-cell population, pointing to a crucial role of CD30 in lymphoma initiation. To further substantiate our hypothesis we performed secondary and tertiary transplantations with different sorted T-Cell subpopulation and indeed, the immature CD4/CD8 double negative population was able to initiate lymphoma growth in recipient mice. Further transplantations by limited dilution will help to identify the leukemia initiating cell in this model. Taken together, our murine LckCre-NPM-ALK bone marrow transplantation model represents a precise and versatile tool to study disease initiation and development resembling human ALCL. Moreover, the impact of specific proteins (e.g. CD30) in the course of disease can be addressed by combining Knockout (e.g. CD30)/LckCre transgenic mice with our model. To this end we crossed CD30/Lck-Cre mice, and preliminary analysis indicate that CD30 expression seems not to be required for the initial onset of disease. Further characterization of the role of CD30 in ALCL is ongoing. Disclosures: No relevant conflicts of interest to declare.


2020 ◽  
pp. 71-81
Author(s):  
Valentina Gribanova

The article is devoted to the characterization of the models and the stages of formation of education systems in African countries and of their current status. The aim of the work was to analyze the impact of various factors on the development of education in Africa. In particular, the impact of military conflicts and the activities of terrorist organizations on the field of education were investigated. It also analyzes the increasing role of the world community in the development of education in African countries in recent decades. The main examples are the aspects of the activities of the terrorist organization Boko Haram, aimed at destabilizing and directly destroying the education system of Nigeria, and the impact of the Mali conflict of 2012-2013 on education. The activities of Boko Haram are widely covered in the scientific literature, but the article focuses on its aspects that are connected precisely with the negative impact on the educational system in Nigeria. The work broadens the perception of the challenges currently facing educational systems in Africa.


2019 ◽  
Vol 32 (8) ◽  
pp. 2253-2281 ◽  
Author(s):  
Wai Fong Chua ◽  
Maria Cadiz Dyball ◽  
Helen Yee

Purpose The purpose of this paper is twofold: first, to assess the impact of the 1999 Special Issue on Professionalization in Asia in the Accounting, Auditing and Accountability Journal (AAAJ); and second, more generally to review research on this topic post-1999. Design/methodology/approach The paper starts with a discussion of the research articles of the Special Issue. It then identifies research that has cited papers in the Special Issue and which focusses on professionalization in Asia to identify relevant subsequent research. In addition, a literature search is conducted to locate post-1999 work that has not cited papers from the Special Issue but has investigated the same topic area. Analyzing both sets of work enables an integrated review of the field and aids the identification of future research opportunities. The study covers published research articles and books on professionalization projects in Asia from 1999 to 2018. In this paper, reference to Asia focusses on East Asia (including countries such as China and Japan), South Asia (including countries such as Bangladesh, India and Sri Lanka), and South East Asia (including countries such as Brunei, Cambodia, Indonesia, Malaysia, the Philippines and Vietnam). Given the elapsed time of near 20 years, there has been sufficient time for research to be published. Therefore, the review focusses on published output only and does not discuss unpublished theses, conference proceedings nor working papers. Findings First, the Special Issue of AAAJ in 1999 generally adopted a critical lens and studied professionalization as projects of market closure and collective mobility. The corporatist framework of Puxty et al. (1987) provided a useful framing to analyze the influence of states, markets and communities on professionalization. Second, the Special Issue has helped to spur interest in understanding professionalization in the region. Post-1999, there are studies of countries not covered in the Special Issue. Third, the themes identified in the Special Issue continue to be relevant and are examined in post-1999 work: the active role of the state, the legacies of colonization, the activities of transnational accounting bodies; and to a lesser degree, the influence of transnational accounting firms. Finally, future research could usefully focus on: the distinctive and more expansive role of Asian state agencies; the conduct of deeper comparative research; the role of accounting firms in the region; and the impact of transnational agencies such as the International Federation of Accountants and the World Bank. Research limitations/implications There are three limitations. First, the review of literature omits unpublished research such as PhD theses and working papers. Second, it focusses only on research published in English. As a result, some work may be excluded. Third, it assesses the contribution of a single issue (i.e. the 1999 AAAJ Special Issue) and does not discuss work that preceded 1999. Originality/value This paper is aimed at assessing the impact of the 1999 Special Issue but also presents a wide-ranging analytical review of published research on accounting professionalization in Asia since 1999. The paper identifies several areas for future research and proposes a modified model of state-market-community-profession relations. In particular, the paper emphasizes the large and distinctive roles of Asian state agencies and the activities of transnational actors (both those within the profession as well as those that are external).


2020 ◽  
Vol 21 (19) ◽  
pp. 7340
Author(s):  
Alessio Lissoni ◽  
Nan Wang ◽  
Timur Nezlobinskii ◽  
Maarten De Smet ◽  
Alexander V. Panfilov ◽  
...  

Cx43 hemichannels (HCs) are electrically and chemically gated transmembrane pores with low open probability and multiple conductance states, which makes kinetic studies of channel gating in large datasets challenging. Here, we developed open access software, named HemiGUI, to analyze HC gating transitions and investigated voltage-induced HC opening based on up to ≈4000 events recorded in HeLa-Cx43-overexpressing cells. We performed a detailed characterization of Cx43 HC gating profiles and specifically focused on the role of the C-terminal tail (CT) domain by recording the impact of adding an EGFP tag to the Cx43 CT end (Cx43-EGFP) or by supplying the Cx43 HC-inhibiting peptide Gap19 that interferes with CT interaction with the cytoplasmic loop (CL). We found that Gap19 not only decreased HC opening activity to the open state (≈217 pS) but also increased the propensity of subconductance (≈80 pS) transitions that additionally became slower as compared to the control. The work demonstrates that large sample transition analysis allows detailed investigations on Cx43 HC gating and shows that Gap19 acts as a HC gating modifier by interacting with the CT that forms a crucial gating element.


2020 ◽  
Author(s):  
Laetitia Rodet ◽  
Dong Lai

<p class="western" align="justify">The characterization of the interplay between the inner and outer parts of planetary systems has long been impractical due to the separated detection ranges of the corresponding observation techniques. However, this gap is closing thanks to the technical improvements of the instruments and the longer observational baselines, and statistical insights are already within reach on the impact of cold Jupiters on super Earths. In this talk, I would like to present a theoretical study on the influence of an external giant planet misaligned with inner resonant planets, within the circular restricted problem. The behavior of the system depends on the relative strength between the coupling of the planets and the perturbations from the outer body. We demonstrated that mean-motion resonance strengthens the inner coupling and is very resilient to the perturbation, surviving periodic relative inclination increases of tens of degrees between the inner planets. This study has applications for the indirect detection of exoplanets, as well as the understanding of their formation and evolution, in particular the role of mean-motion resonance and relative inclinations.</p>


2018 ◽  
Author(s):  
Valentin Gfeller ◽  
Meret Huber ◽  
Christiane Förster ◽  
Wei Huang ◽  
Tobias G. Köllner ◽  
...  

AbstractVolatile organic compounds (VOCs) emitted by plant leaves can influence the physiology of neighboring plants. In contrast to interactions above ground, little is known about the role of VOCs in belowground plant-plant interactions. Here, we characterize constitutive root volatile emissions of the spotted knapweed (Centaurea stoebe) and explore the impact of these volatiles on the germination and growth of different sympatric plant species. We show that C. stoebe roots emit high amounts of sesquiterpenes, with estimated release rates of (E)-β-caryophyllene above 3 μg g−1 dw h−1. Sesquiterpene emissions show little variation between different C. stoebe populations, but vary substantially between different Centaurea species. Through root transcriptome sequencing, we identify six root-expressed sesquiterpene synthases (TPSs). Two root-specific TPSs, CsTPS4 and CsTPS5, are sufficient to produce the full blend of emitted root sesquiterpenes. Volatile exposure experiments demonstrate that C. stoebe root volatiles have neutral to positive effects on the germination and growth of different sympatric neighbors. Thus, constitutive root sesquiterpenes produced by two C. stoebe TPSs are associated with facilitation of sympatric neighboring plants. The release of root VOCs may thus influence C. stoebe abundance and plant community structure in nature.


2020 ◽  
Vol 67 (4) ◽  
pp. 1148-1154
Author(s):  
Andrii Fedorchuk ◽  
Evgeny Goreshnik ◽  
Yurii Slyvka ◽  
Marian Mys’kiv

The present work is directed toward preparation and structural characterization of two novel Cu(I) arylsulfonate π-complexes with 3-allyl-2-thiohydantoin, namely [Cu2(Hath)4](C6H5SO3)2 (1) and [Cu2(Hath)4](p-CH3C6H4SO3)2 · 2H2O (2) (Hath = 3-allyl-2-thiohydantoin), obtained by the means of alternating current electrochemical synthesis and studied with X-ray diffraction method. In both structures, the inner coordination sphere is represented by the cationic dimer [Cu2(Hath)4]2+ with one crystallographically independent copper(I) atom which has a trigonal pyramidal coordination environment formed by three Hath thiogroup S atoms and double C=C bond of its allyl group. [Cu2(Hath)4]2+ fragments in both coordination compounds are very similar, despite some divergences such as a big difference in Cu−S distance to the apical S atom (3.0374(8) Å in 1 and 2.7205(9) Å in 2). This difference was explained by the impact of the system of weak interactions, which are quite different.


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