scholarly journals Edible Oil Parameters during Deterioration Processes

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Marcos Flores ◽  
Victoria Avendaño ◽  
Jessica Bravo ◽  
Cristian Valdés ◽  
Oscar Forero-Doria ◽  
...  

With the continuous increase in research on lipids, technologies and the development of chemical-analytical methods associated with the characterization and monitoring of different processes that involve modifications in edible fats are increasing. The beneficial effect of lipids, especially those essential for the health of the population, is widely known. However, degradation compounds are also produced that eventually have negative effects. In this dual context, the monitoring of the changes suffered by nutritional compounds can be obtained thanks to the development of technologies and analytical methods applied to the study of lipids. The modifications that lipids undergo can be followed by a wide variety of methods, ranging from the basic ones associated with simple chemical titrations to the more complex ones associated with sophisticated laboratory equipment. These determinations involve chemical and/or physical quantification of lipids to know an initial condition on the major and minor components. In addition to technologies that allow monitoring during more complex processes such as thermal deterioration, in multiple conditions depending on the objective of the study, this review could benefit a comprehensive understanding of lipid deterioration for future developments and research in the study of fats and oils for human consumption.

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1354
Author(s):  
Sergio E. Medina-Cuéllar ◽  
Deli N. Tirado-González ◽  
Marcos Portillo-Vázquez ◽  
Sergio Orozco-Cirilo ◽  
Marco A. López-Santiago ◽  
...  

Utilization of maize stover to the production of meat and milk and saving the grains for human consumption would be one strategy for the optimal usage of resources. Variance and tendency analyses were applied to find the optimal nitrogen (N) fertilization dose (0, 100, 145, 190, 240, and 290 kg/ha) for forage (F), stover (S), cob (C), and grain (G) yields, as well as the optimal grain-to-forage, cob-to-forage, and cob-to-stover ratios (G:F, C:F, and C:S, respectively). The study was performed in central Mexico (20.691389° N and −101.259722° W, 1740 m a.m.s.l.; Cwa (Köppen), 699 mm annual precipitation; alluvial soils). N-190 and N-240 improved the individual yields and ratios the most. Linear and quadratic models for CDM, GDM, and G:F ratio had coefficients of determination (R2) of 0.20–0.46 (p < 0.03). Cubic showed R2 = 0.30–0.72 (p < 0.02), and the best models were for CDM, GDM, and the G:F, C:F, and C:S DM ratios (R2 = 0.60–0.72; p < 0.0002). Neither SHB nor SDM negatively correlated with CDM or GDM (r = 0.23–0.48; p < 0.0001). Excess of N had negative effects on forage, stover, cobs, and grains yields, but optimal N fertilization increased the proportion of the G:F, C:F, and C:S ratios, as well as the SHB and SDM yields, without negative effects on grain production.


1972 ◽  
Vol 72 (3) ◽  
pp. 576-579 ◽  
Author(s):  
S. Pokorný ◽  
J. Čoupek ◽  
J. Pokorný

2021 ◽  
pp. arabic cover-english cover
Author(s):  
أحمد المرضي ◽  
محمد النذير الزين

يتناولُ هذا البحثُ التعريفَ بتقنيةِ المعلوماتِ، وماهية الجريمة الإلكترونية، والأخطار الناجمة عنها وتصنيف المُجْرِمين الإلكترونيين، وتنويع الجرائم المُتعلقة بتقنية المعلومات، والأسباب التي تعزي إلى صعوبةِ الكشفِ عنها، وإيراد نموذجًا للجرائم التقنية وفقًا لأحكام القانون الجنائِيّ الإماراتِيّ والمصرِيّ المُتعلقين بمكافحة جرائم تقنية المعلومات. ويشيرُ البحثُ في إيجازٍ إلى: التعريف بالجريمة، وركنها المادي، وبيان شروط الركن المادي، والركن المعنوي، والعقوبة الأصيلة للجريمة، والعقوبة في صورتها المشددة، والعقوبات البديلة. وينطوي البحثُ أيضًا على الأسس الشرعية المُتضمنة حظر الجرائم الماسة بتقنيةِ المعلوماتِ تبعًا لنصوص القرآن الكريم، والسنة النبوية الشريفة، والقواعد الفقهية القاضية بحظر جرائم الانتحال الإلكتروني. ويشتملُ هذا البحثُ على مُقدمةٍ، وخمسة مباحث، وخاتمةٍ على النحو الآتـي: المبحث الأول الأصل الشرعي في تحريم الجرائم الإلكترونية، والمبحث الثاني تعريفات عامة للجرائم المعلوماتية وتصنيفها، والمبحث الثالث أنواع المجرمين المحترفين في المعلوماتية التقنية، وصعوبة اكتشافهم، والمخاطر الأمنية للإنترنت، والمبحث الرابع نماذج من أحكام القانون الجنائي الإماراتي والمصري في مكافحة الجرائم الإلكترونية، والمبحث الخامس الأدلة الرقمية لإثبات الجرائم الإلكترونية وفقًا للقضاءين الإماراتِيّ والمصرِيّ، ثمَّ جاءَت الخاتمةُ لتحتوي على أهم النتائج والتوصياتِ. By this forgoing paper which bearing the title: Combating Electronic Crimes According to Provisions of Criminal Laws of Emirates and Egypt, It Aims to, Enforcement to principals of shariah Law actualization which intents detterence commission crimes through mechanism of” Amr Bil Maroof and Nahy An Munkar”, actualization to the measures of shariah Law that prevent disobedience and electronic crimes. To explain that application of shariah legal maxims such as: "Al Ghurm Bi Al ghunm" whereby it implies whoever owns illegally as a result of committing an offense on a property of whosever should be suffered a penalty, typically to the legal maxim " La dharar wa La dirar ".(damage should be removed) The research methodology which adopted is the descriptive and analytical methods where the researcher intents to define, explains elements and punishments of the crimes. On the other hand the researcher under took the analytical method where he proceeds comparison between the provisions of the two selective criminal laws of Emirates and Egypt, for the achievement the purpose of identification of the similarity and distinctiveness. The problems that presumed to be settled by this research such as: Are there any legal basis to criminalize electronic crime with reference to shariah law? Are there any legal justifications to enforce punishment of fine on the criminal hackers? What are the dangerous consequences for committing the electronic crimes? What are the negative effects for commission electronic crime on individuals and societies at large, and what are the preventive international standards measure and strategies in this context? Concerning the expected achievements by this research, It will enrich the Islamic Library because a comparative research on this topic is so scarce and limited. It will guide the researchers by exploring a new referencing methods for application shariah law, It provides and exposes the legal measure for combating the electronic crimes by using the techniques of detection the electronic criminals by hiding cameras, intelligent phone thumb prints to enable the police investigative officer to deter, identify and arrest the electronic criminals. In the light of combating the researcher advices government officers’ bankers and others to provide top advanced sophisticated technological systems to protect their computers and account numbers against the expected threads of the electronic offences.


2019 ◽  
Vol 21 (01) ◽  
pp. 1950005 ◽  
Author(s):  
Nilson de Paula ◽  
Wellington Pereira ◽  
Mary Jane Parmentier

Food commodities have been used worldwide for both human consumption and energy, amid concerns of environmental degradation and damaging effects on local food systems. Presently, strategies of rural development have encompassed the use of green resources to produce biofuels and an agenda of food security. We argue that by the strengthening of a Sectorial System of Production and Innovation involving farming activity, industrial transformation and institutional support, production for food and for energy can be balanced. Our discussion contributes to the resolution of the potential conflict between agro-energy and food production and the role of public policies in stimulating second-generation ethanol based on remaining biomass. Based on the current literature and empirical evidences, the prospects for sugarcane ethanol in Brazil are examined, bearing in mind the development of a system able to produce second-generation ethanol, as a strategy able to mitigate negative effects on food security.


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