scholarly journals Negative Effects of Chemicals Used Against Potato Pathogens on the Natural Environment

2019 ◽  
Keyword(s):  
Negative Impact ◽  
Plant Protection ◽  
Curcuma Longa ◽  
Storage Conditions ◽  
Negative Effects ◽  
High Biological Activity ◽  
Natural Substances ◽  
Water Ecosystems ◽  
Potato Pathogens

Purpose. This study focused on the analysis of chemicals most often used against potato pathogens and their negative impact on both water and soil ecosystems, as well as the search for alternative solutions. This aspect is extremely important since the quality and quantity of the crop depend mainly on the appearance of diseases on the plantations and postharvest storage conditions. Most often, the fight against pathogens is carried out with the help of fungicides. They, in turn, have a negative impact on water and soil systems, which affects the level of fertility and the quality of farmed products. Results. The analysis showed a negative effects of fungicides on the soil and water ecosystems. According to the reported results, the most dangerous are propamocarb hydrochloride, mancozeb, fluazinam and famoxate. Noteworthy, 30% of the chemicals presented in this review are extremely toxic, 38% are moderately toxic, and 17% are toxic. It was found that the recurring usage of the same fungicides causes the adaptation of pathogens to the active substances while their replacement with other chemicals generates additional costs. The research indicates the necessity of modifying the current protection strategy by eliminating the most dangerous chemical compounds for nature and supplementing the protection program with environmentally safe biopreparations. A new strategy was proposed to fight potato pathogens based on the components obtained from domestic plants of the high biological activity potential (e.g. Curcuma longa, Allium sativum). An innovative approach to plant protection is the use of natural, effective and safe technologies to reduce or even eliminate the traditional chemical preparations. Conclusions. To prevent further degradation of the environment, the presented chemicals must be replaced by effective natural substances showing the antimicrobial activity. The prevention of further degradation of the environment caused by the development of agriculture is extremely important, because the quality and yield of crops depend on the soil quality, and the quality of crops affects human health.

scholarly journals Biogas Upgrading Approaches with Special Focus on Siloxane Removal—A Review

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 6088
Author(s):  
Pardon Nyamukamba ◽  
Patrick Mukumba ◽  
Evernice Shelter Chikukwa ◽  
Golden Makaka
Keyword(s):  
Negative Impact ◽  
Careful Consideration ◽  
Special Focus ◽  
Negative Effects ◽  
Biogas Upgrading ◽  
Suitable Alternative ◽  
Adsorption Processes ◽  
Trace Compounds ◽  
End Use

Biogas, a product of anaerobic digestion process that consists mainly of methane and carbon dioxide is a suitable alternative fuel if unwanted impurities are removed as they have a negative impact on the equipment. The most significant technologically troublesome trace compounds that must be removed are siloxanes since they are converted into silica on gas surface engines and turbines resulting in equipment damage. The quality of the gas is certainly improved by reducing the amount of impurities and the end use determines the extent of biogas cleaning needed. The major aim of this study was to compile information that can assist researchers or even designers in selecting a suitable technology to remove siloxanes. Siloxane removal definitely can be achieved using different methods and the effectiveness of each method relies on careful consideration of the characteristics of both biogas and siloxane, as well as the technological aspects of the method. Herein, we review on different cleaning techniques for siloxanes in raw biogas, the negative effects they have, their levels and technologies to reduce their concentrations. This review also incorporates the sources of the siloxanes, the progress to date on their removal and possible ways of regenerating adsorbents. The reviewed literature suggests that biogas upgrading technology should be promoted and encouraged especially in siloxane removal as it has detrimental effects on engines. The parameters and effectiveness of adsorption processes are discussed, and individual adsorbents are compared.

Predicting Parents' Experiences With Coresident Adult Children

1991 ◽  
Vol 12 (3) ◽  
pp. 323-342 ◽  
Author(s):  
WILLIAM S. AQUILINO
Keyword(s):  
Adult Children ◽  
Negative Impact ◽  
Living Arrangement ◽  
Adult Child ◽  
Negative Effects ◽  
Living Situation ◽  
Parental Experiences ◽  
Lower Socioeconomic ◽  
Parents Experiences

This research examined the likelihood of parent-adult child coresidence and the implications of coresidence for the quality of life as perceived by parents. Data from the 1987-1988 National Survey of Families and Households showed that a positive home environment is a strong selection factor in predicting the probability of coresidence. The presence of unlaunched adult children is most likely when families have not been reconstituted through parental remarriage, when parent-child relations are good, and when parents hold favorable attitudes toward the continued support of adult children. After controlling for selection effects, predictions concerning the normative expectedness of the living arrangement, the influence of children's dependency, and parents' social class on parental experiences in the coresident living arrangement were tested. The normative expectedness of the coresident living arrangement, as indicated by the age of coresident adult children, had little impact on parents' experiences. Adult children's economic dependency had a negative impact on parental assessments of the coresident living situation. Middle-class parents reported more negative effects of coresidence than did parents of lower socioeconomic status.

scholarly journals Quality of Research Design Moderates Effects of Grade Retention on Achievement: A Meta-Analytic, Multilevel Analysis

2009 ◽  
Vol 31 (4) ◽  
pp. 480-499 ◽  
Author(s):  
Chiharu S. Allen ◽  
Qi Chen ◽  
Victor L. Willson ◽  
Jan N. Hughes
Keyword(s):  
Grade Retention ◽  
Negative Impact ◽  
Meta Analysis ◽  
Median Number ◽  
Effect Sizes ◽  
Future Research ◽  
Negative Effects ◽  
Design Quality ◽  
Individual Level

The present meta-analysis examines the effect of grade retention on academic outcomes and investigates systemic sources of variability in effect sizes. Using multilevel modeling (MLM), the authors investigate characteristics of 207 effect sizes across 22 studies published between 1990 and 2007 at two levels: the study (between) and individual (within) levels. Design quality is a study-level variable. Individual-level variables are median grade retained and median number of years postretention. Quality of design is associated with less negative effects. Years postretention is negatively associated with retention effects, and this effect is stronger for studies using grade comparisons versus age comparisons. The results challenge the widely held view that retention has a negative impact on achievement. Suggestions for future research are discussed.

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 Positive and negative effects of nanoparticles on plants and their applications in agriculture

2019 ◽  
Vol 6 (2) ◽  
pp. 232-242 ◽  
Author(s):  
Pooja Goswami ◽  
Sonali Yadav ◽  
Jyoti Mathur
Keyword(s):  
Plant Growth ◽  
Negative Impact ◽  
Plant Protection ◽  
Growth Promotion ◽  
Chlorophyll Synthesis ◽  
Production Plant ◽  
Negative Effects ◽  
Research Areas ◽  
Nano Medicine ◽  
Global Food

Nanotechnology is the promising field with its wide applications in biotechnology, pharmaceutical science, drug targeting, nano-medicine and other research areas. This review highlights the positive and negative impact of nanoparticles on plants and its wide applications in agricultural sciences. Effect of NPs in terms of seed germination, growth promotion and enhancement of metabolic rate has been evaluated by several scientific researches. However, NPs also exert their negative effects such as suppression of plant growth, inhibition of chlorophyll synthesis, photosynthetic efficiency etc. Effects of NPs can be either positive or negative it depending upon the plant species and type of nanoparticles used & its concentration. Modern nano-biotechnological tools have a great potential to increase food quality, global food production, plant protection, detection of plant and animal diseases, monitoring of plant growth nano-fertilizers, nano-pesticide, nano-herbicides and nano-fungicides.

scholarly journals The Effects of Dysphagia on Quality of Life in Stroke Survivors

2020 ◽  
Vol 7 (4) ◽  
Author(s):  
Jalal Bakhtiyari ◽  
Hooshang Dadgar ◽  
Marziyeh Maddah ◽  
Raheb Ghorbani ◽  
Faezeh Charkhi ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Negative Impact ◽  
Oropharyngeal Dysphagia ◽  
Cross Sectional Study ◽  
Stroke Survivors ◽  
Negative Effects ◽  
Swallowing Function ◽  
Cross Sectional ◽  
And Gender

Background: Oropharyngeal dysphagia is a common problem in stroke survivors. Dysphagia and its complications have negative effects on quality of life in stroke survivors. Objectives: This study aimed to investigate the impacts of dysphagia on quality of life in Iranian stroke survivors and to determine potential relationships between demographic variables and the domains of quality of life. Methods: Sixty stroke survivors (aged 60 - 75 years old) with a diagnosis of dysphagia participated in this cross-sectional study. The swallowing function of patients was evaluated by Mann Assessment Swallowing Ability (MASA). The Persian version of the Dysphagia Handicap Index (DHI) was used to determine the impacts of swallowing disorder on the quality of life. Results: The mean total and SD of DHI was 73.03 ± 10.16. There was no statistically significant relationship between sex; age, time post-onset of stroke, and DHI total score as well as its subscales (P > 0.05), whereas there was a relationship between the functional subscale of the DHI and the level of education (r = 0.27, P = 0.037) and also with severity of dysphagia on the base of MASA scores (r = 0.267, P = 0.039). Besides, the severity of dysphagia was positively correlated with DHI’s total scores (r = 0.312, P = 0.017); this means that the higher the severity of dysphagia, resulting in even greater the DHI total scores, which indicates a further reduction in the patient’s quality of life. Conclusions: Based on the findings of this study, it can be concluded that dysphagia in stroke survivors has negative impacts on the quality of life. The relationship between clinical measures of dysphagia severity and quality of life also indicates that the higher the dysphagia severity the lower the quality of life. Dysphagia’s negative impact on the quality of life does not depend on age and gender.

scholarly journals Internal quality of commercial eggs stored under conditions that simulate storage from laying to consumption

2021 ◽  
Vol 51 (1) ◽  
Author(s):  
R.A. Souza ◽  
J.L.M. Mello ◽  
F.B. Ferrari ◽  
A. Giampietro-Ganeco ◽  
P.A. Souza ◽  
...  
Keyword(s):  
Lipid Oxidation ◽  
Room Temperature ◽  
Storage Conditions ◽  
The Other ◽  
Internal Quality ◽  
Negative Effects ◽  
Haugh Unit

This study evaluated the effects on the internal quality of eggs of various storage environments through which eggs may pass between being laid and being consumed. Commercial eggs (N = 648) from Dekalb White hens were used. Treatments consisted of T1: 28 days at 4 °C; T2: 28 days at 20 °C; T3: 7 days at room temperature (27 °C ± 2 °C) (humidity 55%) and 21 days at 4 °C; T4: 7 days at room temperature and 21 days at 20 °C; T5: 14 days at room temperature and 14 days at 4 °C; T6: 14 days at room temperature and 14 days at 20 °C; T7: 21 days at room temperature and 7 days at 4 °C; T8: 21 days at room temperature and 7 days at 20 °C; and T9: 28 days at room temperature. The characteristics that were evaluated consisted of Haugh unit (HU), yolk index (YI), colour (L*, a* and b*), albumen pH, yolk pH and lipid oxidation. Eggs stored 28 days were darker (L*), and had greater yolk pH and lipid oxidation than fresh eggs. Eggs stored under T1 and T3 conditions had greater HU and YI than eggs stored in the other environments. The albumin pH of eggs stored at room temperature (T9) was highest of the treatments. Yellowness was increased in eggs stored under T4, T6, T8, and T9 conditions. Eggs should be stored under refrigeration as this promotes maintenance of internal quality and mitigates negative effects of previous storage conditions.

scholarly journals Extending Aging of Beef Longissimus Lumborum From 21 to 84 Days Postmortem Influences Consumer Eating Quality

Foods ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 208 ◽  
Author(s):  
Andrea Garmyn ◽  
Nicholas Hardcastle ◽  
Rod Polkinghorne ◽  
Loni Lucherk ◽  
Mark Miller
Keyword(s):  
Storage Conditions ◽  
Eating Quality ◽  
Negative Effects ◽  
Consumer Evaluations ◽  
Chilled Storage ◽  
Aging Period ◽  
Postmortem Aging ◽  
Longissimus Lumborum

Our objective was to determine the effect of extending postmortem aging from 21 to 84 days on consumer eating quality of beef longissimus lumborum. Strip loins were collected from 108 carcasses. The longissimus lumborum muscle was isolated from strip loins and assigned to one of ten postmortem aging periods from 21 to 84 days (7-day increments) and balanced within four anatomical positions within the muscle. Consumer evaluations for tenderness, juiciness, flavor, and overall liking were conducted using untrained consumer sensory panels consisting of 1080 individual consumers, in accordance with the Meat Standards Australia protocols. These scores were then used to calculate an overall eating quality (MQ4) score. Postmortem aging had no effect (P > 0.05) on tenderness, but juiciness, flavor liking, overall liking, and MQ4 declined (P < 0.05) as aging period increased. Samples aged 21 to 42 days were most preferred having greater (P < 0.05) overall liking and greater (P < 0.05) MQ4 scores than samples aged 70 to 84 days postmortem. These results suggest that longissimus lumborum samples should not be wet-aged longer than 63 days to prevent potential negative eating experiences for consumers; however, altering storage conditions, specifically reducing temperature, could potentially allow for longer chilled storage without such negative effects on flavor and overall liking.

The UNTOLD story

2019 ◽  
Vol 11 (5) ◽  
pp. 492-505 ◽  
Author(s):  
Ovidiu Ioan Moisescu ◽  
Oana Adriana Gică ◽  
Monica Maria Coroș ◽  
Anca C. Yallop
Keyword(s):  
Quality Of Life ◽  
Large Scale ◽  
Negative Impact ◽  
Well Being ◽  
Negative Effects ◽  
Local Authorities ◽  
Content Type ◽  
Music Festival ◽  
Negative Impacts

Purpose This paper aims to examine the negative effects of events on residents’ quality of life. Particularly, the paper analyses the specific negative effects generated via “overtourism” for the duration of large-scale music festivals. Design/methodology/approach The paper uses a case study method approach to examine the negative effects that UNTOLD, the largest music festival in Romania, has on residents’ quality of life. The case is analysed via a comprehensive desk research of secondary data from industry and academic sources. Findings Despite its success and the positive economic impact UNTOLD festival had on the host city, several issues have a negative impact on residents’ quality of life and well-being. The negative impacts are noise pollution, vandalism and crime, traffic and parking issues, waste and damages to the natural environment, pressure on and over usage of local services and infrastructure and the increased cost of living. Social implications Whilst organisers, local businesses and local authorities are the main parties benefiting from events, residents mainly feel the negative impact. Organisers, local authorities and businesses need to minimise the negative effects residents’ experience during the event by building sustainable partnerships and taking a more hands-on approach to sustainable and socially responsible practices. Current and potential initiatives are discussed in the paper. Originality/value This paper examines the negative impacts events may have on residents’ quality of life and discusses the case of a large-scale music festival, an under-researched context. The analysis and discussion may assist scholars and industry experts alike in generating new debates in sustainable event management practices, as well as festival organisers and public authorities in developing strategies for avoiding, containing or minimising the negative effects of events.

scholarly journals Risk factors for cardiovascular disease among railway locomotive drivers

2020 ◽  
pp. 37-40
Author(s):  
N. V. Orlova ◽  
A. Ya. Starokozheva
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Cardiovascular System ◽  
Negative Impact ◽  
Occupational Hazards ◽  
Negative Effects ◽  
System A ◽  
Stress Work

Cardiovascular diseases in locomotive drivers are a factor limiting their working activity, as they can potentially increase the risks of accidents and disasters in rail transport. Working conditions of drivers are associated with occupational hazards that have a negative impact on the cardiovascular system. A review of clinical studies examining the risk factors for cardiovascular disease indicates the significant role of psychological stress on the health status of drivers. It was revealed that the negative effects of stress on the cardiovascular system depend on work stress, work schedule, and also on social factors: job satisfaction, salary, quality of rest and sleep. The studies revealed a correlation between the development of cardiac rhythm disturbances of high gradations with psychoemotional stress and sleep apnea in locomotive drivers.

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