scholarly journals The Impact of Oxygen at Various Stages of Vinification on the Chemical Composition and the Antioxidant and Sensory Properties of White and Red Wines

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Tomasz Tarko ◽  
Aleksandra Duda-Chodak ◽  
Paweł Sroka ◽  
Małgorzata Siuta
Keyword(s):  
Chemical Composition ◽  
Production Process ◽  
Red Wines ◽  
Negative Effects ◽  
Wine Production ◽  
New Techniques ◽  
Activity Of Enzymes ◽  
Effect Of Oxygen ◽  
The Impact

The purpose of this review was to collect and systematize information on the role and importance of oxygen in winemaking. Both the positive and negative effects of oxygen are presented and discussed throughout the text. The review characterizes the subsequent stages of the wine production process, during which oxygen comes into contact with fruits, must, and finally wine. The impact of oxygen on the growth and metabolism of yeast, on the activity of enzymes, and on the final quality of wine was presented. The discussion of the effect of oxygen presence on the taste, aroma, colour, and stability contains a detailed description of changes of volatile compounds, polyphenols, and other important components of wine that take place in the presence of oxygen in both white and red wines. New techniques based on the use of oxygen to obtain the desired sensory characteristics of wine were also presented.

scholarly journals Quality control of aluminium melt in production process

2016 ◽  
Vol 61 (Special Issue) ◽  
pp. S43-S47 ◽  
Author(s):  
M. Kotus ◽  
E. Jankajová ◽  
M. Petrík
Keyword(s):  
Quality Control ◽  
Chemical Composition ◽  
Production Process ◽  
Aluminium Alloy ◽  
Technological Process ◽  
Casting Alloy

The quality of aluminium alloy in the production process on the chemical composition basis was evaluated. The quality of casting alloy depends on the chemical composition of melt and on the technological process of production process. The basic elements such as Si, Cu, Fe, Mg and Al in melting were evaluated. The obtained data were compared with the guide data referred to in the standard for aluminium alloy.

Durability and Permanence in the Quality – Contemporary Parameters, Defining the Papers and Cardboards for Printing Art

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Denitsa Ivanova-Alexandrova ◽  
◽  
◽  
Keyword(s):  
Chemical Composition ◽  
Quality Parameters ◽  
High Quality ◽  
Graphic Art ◽  
Long Period ◽  
External Influences ◽  
Two Factors ◽  
Composition Properties ◽  
The Impact

The long lifecycle, also known as durability and the permanence / invariability in the quality of papers and cardbords for graphic art, are today the basic requirements, imposed by printed art in terms of high quality parameters. These two factors are a manifestation, depending on different internal chemical-composition properties of the paper consistency and external influences of the ambience. Longevity and permanence are perceived as a function of aging and are actually observed at a later point in time. It is important to clarify that they are terms with different contents where „durability” is perceived as the ability of the paper or cardboard to resist the impact of wear during use, and the „permanence” is the possibility of product to remain chemically and physically stable for a long period of time.

Drugs

ESC CardioMed ◽  
2018 ◽  
pp. 1030-1035
Author(s):  
Mike Kirby ◽  
Jonny Coxon
Keyword(s):  
Quality Of Life ◽  
Cardiovascular Disease ◽  
Erectile Dysfunction ◽  
Negative Effects ◽  
Phosphodiesterase Type 5 Inhibitors ◽  
Cardiac Condition ◽  
Male Patients ◽  
Phosphodiesterase Type ◽  
The Impact

It should not be presumed that male patients with cardiovascular disease are less sexually active than others, but they are more likely to have erectile dysfunction. It is therefore crucial to consider the impact on sexual function of medications commonly used to treat cardiovascular disease, because negative effects on erectile dysfunction can lead to problems with compliance and quality of life. Cardiovascular implications of phosphodiesterase type 5 inhibitors used to treat erectile dysfunction should be borne in mind. Effective treatment of the cardiac condition should always take priority.

Utilization of sewage sludge ashes in the brick and tile industry

1997 ◽  
Vol 36 (11) ◽  
pp. 251-258 ◽  
Author(s):  
Bernd Wiebusch ◽  
Carl Franz Seyfried
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Chemical Composition ◽  
Sewage Sludge ◽  
Treatment Methods ◽  
Sludge Incineration ◽  
Brick And Tile ◽  
The Impact

Several aspects of using ashes from sewage sludge incineration in the brick and tile industry have been examined. After discussing the item of ash production in Germany, the impact of different wastewater treatment methods is described; for instance, the use of precipitation agents containing iron will considerably influence the ash quality. Depending on their respective chemical composition, different ashes have different effects on the ceramic qualities of the bricks made of clay blended with ashes. These effects will be shown in regard to the major ceramic parameters. Similarly, the quality of the ashes also influences the elution behaviour and the mineral fixation of heavy metals.

scholarly journals The Impact of Foliar Application of Calcium Fertilizers on the Quality of Highbush Blueberry Fruits Belonging to the ‘Duke’ Cultivar

2012 ◽  
Vol 40 (2) ◽  
pp. 163 ◽  
Author(s):  
Ireneusz Dariusz OCHMIAN
Keyword(s):  
Chemical Composition ◽  
Calcium Chloride ◽  
Foliar Application ◽  
Fruit Size ◽  
Mechanical Damage ◽  
Calcium Content ◽  
Highbush Blueberry ◽  
The West ◽  
The Impact

The studies were conducted in the period of 2010-2011, in the Laboratory of Orcharding at the West Pomeranian University of Technology in Szczecin, and related to the bushes of the highbush blueberry of the Duke cultivar. The authors examined the impact of foliar calcium fertlizers (Calcinit, Calcium chloride, Fruton Calcium Calcium, Folanx®Ca29 Lebosol Calcium Forte Calcium Forte) on the fruit size and firmness, their chemical composition, content of macronutrients in the foliage and fruits, and their colour. It was found that the applied fertlizers have varied impact on the examined attributes. The bushes sprayed with the Lebosol Calcium Forte and Calcinit preparations had big fruits with a high content of K and Mg, and dark foliage. The application of the Lebosol Calcium Forte fertilizer increased the content of polyphenols and vitamin C in the fruits. The smallest amounts of such compounds were determined in the fruits sprayed with the Calcinit fertilizer. The highest firmness and resistance to mechanical damage were achieved in the case of the fruits collected from the bushes sprayed with the foliar fertlizers containing calcium chloride, such as Fruton Calcium and Folanx Ca29. It was determined that the application of the calcium preparations resulted in the increase of the calcium content in the fruits and foliage. The highest amounts of this element were determined in the case of the plants sprayed with the Folanx Ca29 and Lebosol Calcium Forte preparations.

The Influence Factors of Silicon Steel Magnetic Property

2014 ◽  
Vol 884-885 ◽  
pp. 345-348 ◽  
Author(s):  
Lei Shang ◽  
Hai Li Yang ◽  
Hong Xu ◽  
Yun Gang Li
Keyword(s):  
Magnetic Properties ◽  
Magnetic Property ◽  
Chemical Composition ◽  
Influence Factors ◽  
Dimensional Accuracy ◽  
Silicon Steel ◽  
Factors Affecting ◽  
Size Type ◽  
The Impact

Magnetic properties of silicon steel mainly depend on the internal organizational structure and chemical composition. The main factors affecting magnetic properties of silicon steel are analyzed and summarized, including grain size, inclusions (size, type, quantity, and morphology), crystal texture, internal stress, dimensional accuracy, the surface quality of steels, and chemical composition. The impact mechanism of the factors influencing silicon steel magnetic property is explained and these influence factors are interrelated.

scholarly journals Compositional aspects and bacteriological quality of camel milk from Tunisian oasis

2021 ◽  
Author(s):  
Khaldi Zahran ◽  
Nafti Mounir ◽  
Jilani Tabarek
Keyword(s):  
Chemical Composition ◽  
Raw Milk ◽  
Fat Content ◽  
Physical Characteristics ◽  
Total Solids ◽  
Age Class ◽  
Quality Aspects ◽  
Mineral Concentrations ◽  
The Impact

Abstract This study was planned to investigate the raw milk characteristics and quality aspects and to evaluate the impact of nongenetic factors on physicochemical composition and microbial quality of milk from local Maghrebi camels (Camelus dromedarius) kept under a traditional system in oasis areas, southern west, Tunisia. Forty-nine individual milk samples were collected from lactating Negga over two periods of the year (winter and summer). Animals belonging to private flocks were between 5 and 17.5 years of age, with parity numbers ranging from first to sixth. Samples were analyzed for physical parameters, chemical composition, mineral concentrations, and microbiological features according to standard methods. The overall means of physical characteristics were 6.63 ± 0.22, 1030.63 ± 2.54, and 19.11 ± 4.08 for pH, density, and acidity, respectively. No significant association (P > 0.05) between physical characteristics and nongenetic factors has been observed. The average results of chemical composition for dry matter, protein, fat, casein, lactose, ash, and casein/protein ratio were 115.24±15.67g/L, 30.98±6.40 g/L, 32.84±4.88 g/L, 22.77±4.27 g/L, 37.21±4.64 g/L, 6.87±1.59 g/L, and 0.74±0.06 g/L respectively. Season, parity, and age were confirmed to impinge significantly on chemical components, except for lactose. The maximum contents of total solids, protein, casein, and fat content were observed during winter. The third lactation was characterized with the highest content of total solids, protein, casein, and lactose; while the highest fat content was recorded in the second lactation. Lactose content was stable throughout all the studied age classes (P > 0.05), whereas the other chemical constituents, showed an obvious superiority in the age class of 7≤ age ≤ 9 years. Season, parity, and age of the animal exerted a significant effect on all minerals. The highest levels of Ca, P, and K were recorded in the winter (P<0.01) whereas Na showed an opposite pattern and was higher in the summer (P<0.01). All major minerals were higher in milk from multiparous than primiparous camels, with maximum concentrations at the fourth lactation. The uppermost levels of mineral concentrations were recorded in the age class of 7≤ age ≤ 9 years. The lowest ones were those of animals over 12 years old. The microbial analysis of raw milk which is affected by season, parity, and age showed higher overall contamination levels in all studied bacterial counts. The highest levels were observed in winter, among the multiparous and oldest Negga. The results highlighted the complete absence of the two dangerous pathogens Salmonella and CSR in all analyzed samples.

scholarly journals The effect of decomposing biomass of the grasses Festuca arundinacea, F. ovina, and F. rubra on the species composition and quality of lawns

2018 ◽  
Vol 71 (4) ◽  
Author(s):  
Halina Lipińska ◽  
Wanda Harkot ◽  
Zbigniew Czarnecki ◽  
Rafał Kornas ◽  
Ewa Stamirowska-Krzaczek ◽  
...  
Keyword(s):  
Species Composition ◽  
Festuca Arundinacea ◽  
Negative Impact ◽  
Negative Influence ◽  
Allelopathic Effect ◽  
Negative Effects ◽  
Dicotyledonous Plants ◽  
Study Sites ◽  
The Impact

<p>The aim of the study was to assess the impact of cut vegetative shoots of chosen lawn grass cultivars of <em>Festuca</em> being left on the lawn sward surface on the species composition, sodding and appearance, and over-wintering of the lawn. The influence of decomposing biomass was studied in a field experiment between 2008 and 2014. Each cultivar was sown as a monoculture on microplots with an area of 1 m<sup>2</sup>. The control consisted of sites from which the cut sward had been removed immediately after cutting.</p><p>The results obtained may indicate an allelopathic effect of the cut sward of the cultivars left on the lawn surfaces. The following had the most negative effects on the species composition of the lawn sward (from greater to lesser negative impact): <em>F. ovina</em> ‘Espro’, <em>F. rubra</em> ‘Areta’, <em>F. arundinacea</em> ‘Asterix’, and <em>F. ovina</em> ‘Pintor’. With the exception of ‘Espro’, these cultivars also limited the presence of dicotyledonous plants in the lawn sward. The cover of dicotyledonous plants and other unsown grasses was also recorded on the sites with <em>F. rubra</em> ‘Olivia’ and ‘Nimba’. The greatest negative influence on the sodding of the lawn swards was demonstrated by the latter <em>F. rubra</em> cultivar, whereas <em>F. ovina</em> ‘Espro’ had the greatest negative influence on the appearance. However, no differences were found in assessments of over-wintering of the cultivars at the study sites. However, taking into account the scale of these impacts on the characteristics evaluated, the cultivars of <em>Festuca</em> species tested can be recommended for extensive use, where a cut sward can be left on the surface of the lawn. Some caution in this respect is recommended when it comes to <em>F. ovina</em> ‘Espro’ and <em>F. rubra</em> ‘Areta’ and ‘Nimba’.</p>

scholarly journals Impact of Pregnancy-Related Venous Thromboembolism on Quality of Patients’ Lives

2021 ◽  
Vol 27 ◽  
pp. 107602962110408
Author(s):  
Naser Al-Husban ◽  
Leena N. Alnsour ◽  
Zaid El-adwan ◽  
Nada A. Saleh ◽  
Mazen El-Zibdeh
Keyword(s):  
Drug Level ◽  
Cross Sectional Study ◽  
Negative Effects ◽  
Cross Sectional ◽  
The Past ◽  
Hospital Visits ◽  
Future Pregnancy ◽  
Anxiety Depression ◽  
The Impact

Background: During pregnancy, the risk of venous thrombo-embolism (VTE) is increased at least five times compared with non-pregnant women of the same age, while the relative risk in the postpartum period can be as high as sixty times. The aim of the study was to explore the impact of pregnancy-related VTE on patients' mental, professional, social and personal life. Methods and Materials: Cross-sectional study at Jordan University Hospital's Obstetrics Department. Results: There were 112 women. Forty-six (41.1%) had a postpartum VTE. Twenty-eight of the patients (25%) had comorbidity. Eleven (9.9%) had a previous episode of VTE. Thirty-nine (35%) of the women reported three or more hospital visits over the past six months. Twenty-one (19.6%) of the women answered that their leg or chest pain has impeded their social activities. Anxiety/Depression was reported by 96.43% while Pain/Discomfort by 73.21%. A significant reduction of time spent on their work (correlation = 0.663, significant at <0.01) and accomplishing less work (correlation = 0.787, this was significant at <0.01) was found; 57.14% of patients indicated that VTE affecting their future pregnancies; 58.9% of patients were receiving anticoagulants with the most commonly used drug was aspirin. Twenty-four (36.4%) of the women were on multiple anticoagulant therapies. Twenty-five of the patients receiving medications do not monitor their medications and 20 patients said that monitoring the drug level was a bother to them. Conclusions: Pregnancy-related VTE had a significant adverse impact on physical, mental and professional life of women. It also had negative effects on future pregnancy plans.

scholarly journals ANALYSIS OF THE IMPACT OF SOCIAL NETWORKS ON THE QUALITY OF LIFE AND EDUCATION OF YOUNG PEOPLE

2021 ◽  
Vol 19 (34) ◽  
Author(s):  
Jelena Jevtić ◽  
Milan S. Dajić
Keyword(s):  
High School ◽  
Social Networks ◽  
High School Students ◽  
Virtual World ◽  
The Internet ◽  
Access To Information ◽  
Negative Effects ◽  
School Students ◽  
The Impact

Social networks are a way of creating a virtual identity and entering into relationships with strangers in a series of interactions that were not known to a man before the existence of the Internet. Mobile phones and the virtual world often create a personality of a person that is not the same in the real world. It can be said that technology has changed the course of humanity and human consciousness and contributed to many changes in the mentality of society, especially among the youth. Children are often overwhelmed by materialism and jealousy, which further encourages them to become an unconscious, immoral and unambitious population. One of the negative effects of social networks is the abuse of privacy, which is also becoming a growing problem everywhere in the world and should not be ignored. However, a positive attitude should be maintained when it comes to social networks, because they facilitate communication, access to information and learning, greater availability of services and free advertising of some products or services. High school students use the Internet intensively every day, and the work raises the question of whether they use it constructively or destructively. The research was conducted in 2019, the population of high school students was observed and 100 students were included on the territory of Belgrade, Niš and Vitina.

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