4,172 research outputs found
Antioxidants of natural plant origins: from sources to food industry applications
ReviewIn recent years, great interest has been focused on using natural antioxidants in food
products, due to studies indicating possible adverse effects that may be related to the consumption of
synthetic antioxidants. A variety of plant materials are known to be natural sources of antioxidants,
such as herbs, spices, seeds, fruits and vegetables. The interest in these natural components is
not only due to their biological value, but also to their economic impact, as most of them may be
extracted from food by-products and under-exploited plant species. This article provides an overview
of current knowledge on natural antioxidants: their sources, extraction methods and stabilization
processes. In addition, recent studies on their applications in the food industry are also addressed;
namely, as preservatives in different food products and in active films for packaging purposes and
edible coatingsinfo:eu-repo/semantics/publishedVersio
Pancreatoscopy-guided electrohydraulic lithotripsy in a patient with calcific chronic pancreatitis
info:eu-repo/semantics/publishedVersio
Endometriosis: A Rare Cause of Large Bowel Obstruction.
Large bowel obstruction can result in significant morbidity and mortality, especially in cases of acute complete obstruction. There are many possible causes, the most common in adults being colorectal cancer. Endometriosis is a benign disease, and the most affected extragenital location is the bowel, especially the rectosigmoid junction. However, transmural involvement and acute occlusion are very rare events. We report an exceptional case of acute large bowel obstruction as the initial presentation of endometriosis. The differential diagnosis of colorectal carcinoma may be challenging, and this case emphasizes the need to consider intestinal endometriosis in females at a fertile age presenting with gastrointestinal symptoms and an intestinal mass causing complete large bowel obstruction.info:eu-repo/semantics/publishedVersio
Model-independent constraints on the shape parameters of dilepton angular distributions
The coefficients determining the dilepton decay angular distribution of
vector particles obey certain positivity constraints and a rotation-invariant
identity. These relations are a direct consequence of the covariance properties
of angular momentum eigenstates and are independent of the production
mechanism. The Lam-Tung relation can be derived as a particular case, simply
recognizing that the Drell-Yan dilepton is always produced transversely
polarized with respect to one or more quantization axes. The dilepton angular
distribution continues to be characterized by a frame-independent identity also
when the Lam-Tung relation is violated. Moreover, the violation can be easily
characterized by measuring a one-dimensional distribution depending on one
shape coefficient.Comment: 7 page
ProFuelDB : an open-access database of physiological properties of biofuel-producing anaerobic prokaryotes
Anaerobic microorganisms are attractive for the synthesis of fuels and chemicals, but information on the physiology of culturable anaerobes is dispersed in scientific literature. Herewith we present the ProFuelDB, a web-based publicly available database prototype compiling information on the physiology of anaerobic prokaryotes with relevance for biofuels production. It is foreseen that this prototype will evolve into a broader database of physiological properties of anaerobic prokaryotes
with biotechnological relevance
Does society moral values matter for earnings management? Empirical evidences around the world
The ethics and moral issues involved in the financial reporting process has long been a
concern of the accounting profession, promoting intense discussions on the part of both
academia and market players. Considering this relevant debate, this study aims to analyze
the effect of society moral values on earnings management. Despite manipulation of
accounting amounts be one of the most discussed subjects on accounting literature, their
motivation and practice related to ethics and moral values seem to be largely discussed in
accounting literature only theoretically and through qualitative ways. We fill this gap and
investigate the association between societies moral values and accruals-based earnings
management in an international sample encompassing 12,080 firms from 39 non-US
countries. We use data from the years 2000 to 2017 and the final sample is composed of
99,807 firm-year observations. Based on an international questionnaire by World Values
Survey Association, we constructed an index of moral values in a country-level. Based on
econometric estimations, our empirical finds suggest that societies where morally
questionable behaviors are less acceptable (e.g., accepting bribery, deflecting taxes, among
others) present lower levels of accruals-based earnings management, confirming that
manipulation of accounting amounts is less acceptable where societies has higher moral
values Additionally, we provide empirical evidences that society moral values moderate the
effect of the mandatory adoption of International Financial Reporting Standards (IFRS) on
earnings management. Our study contributes to earnings management literature, discussing
about society moral values and earnings manipulation in a large empirical way, providing
relevant discussions to regulators and other market participants on ethical and moral
implications of managers and police-makers in the preparation of accounting information.info:eu-repo/semantics/publishedVersio
Eosinophilic Ascites: Uncommon Presentation of Eosinophilic Gastroenteritis in a Young Adult Male.
info:eu-repo/semantics/publishedVersio
Earnings management of brazilian firms in the IFRS era: The role of economic and institutional factors
This study investigates whether accounting quality – more specifically regarding the level of earnings management by accruals – is associated with a country’s economic and institutional factors that change over time in IFRS era. Based on a sample of 1,387 Brazilian firm-year observations and data regarding 2011 to 2018, econometric models are estimated considering the absolute amount of discretionary accruals as proxy for earnings management and different aspects related to economic and institutional factors of preeminent importance to an emerging economy. We show that in general, high inflation, stock market volatility, and policy uncertainty rates, as well as lower regulatory quality, on average, are associated with a higher level of earnings management in Brazil. This study contributes to the accounting literature in emerging economies discussing the role of economic and institutional factors on accounting quality in the IFRS era in one of the largest developing country in the world. Compared to developed countries or even to other developing economies, Brazil stands out as an emerging economy of considerable economic and political instability, making it a valuable setting for this analysisinfo:eu-repo/semantics/publishedVersio
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