scholarly journals Degradation of Triclosan and Carbamazepine in Two Agricultural and Garden Soils with Different Textures Amended with Composted Sewage Sludge

2018 ◽  
Vol 15 (11) ◽  
pp. 2557 ◽  
Author(s):  
Yanqiu Shao ◽  
Kai Yang ◽  
Rongchang Jia ◽  
Chao Tian ◽  
Ying Zhu
Keyword(s):  
Sewage Sludge ◽  
Agricultural Soil ◽  
Urease Activity ◽  
Positive Relationship ◽  
Negative Relationship ◽  
Land Application ◽  
Garden Soil ◽  
Correlation Studies ◽  
Addition Amount ◽  
Composted Sewage Sludge

Composted sewage sludge (CSS) has been extensively used in agriculture and landscaping, offering a practical solution for waste disposal. However, some pharmaceutical and personal care products (PPCPs) like triclosan (TCS) and carbamazepine (CBZ) have restricted its land application. In this study, CSS was added to agricultural soil and garden soil at 0%, 5%, 10%, and 25% (w/w soil), and 4 mL of TCS and CBZ stock solution (1000 mg/L in methanol) was spiked into soil amended with CSS of each bottle to arrive at the concentration of 10 mg/kg. Samples were then collected after incubation for 120 days and analyzed for concentrations and half-life (t1/2) of TCS and CBZ, and soil physicochemical properties, together with enzyme activities. The results showed that TCS was degraded completely during the incubation period. In contrast, only about 5.82–21.43% CBZ was degraded. CSS amendment inhibited TCS and CBZ degradation and prolonged t1/2 compared to the control, and the t1/2 of TCS and CBZ increased with CSS addition amount in all treatments except for CBZ in the garden soil amended with 10% CSS. Correlation studies showed a significantly positive relationship between t1/2 of TCS and CBZ and total organic carbon (TOC), while a significantly negative relationship between t1/2 of the two PPCPs and pH was observed. Alkaline phosphatase showed a significantly negative relationship with the Ct/C0 of TCS in garden soil amended with 25% CSS and CBZ in the control. The urease activity was negatively correlated with the Ct/C0 of TCS in 10% and 25% CSS treatments and CBZ in 10% CSS treatment for garden soil.

Fate of nonylphenol and 17β-estradiol contained in composted sewage sludge after land application

2008 ◽  
Vol 57 (2) ◽  
pp. 167-174 ◽  
Author(s):  
M. Minamiyama ◽  
S. Ochi ◽  
Y. Suzuki
Keyword(s):  
Sewage Sludge ◽  
Early Stage ◽  
Soil Layer ◽  
Land Application ◽  
Experimental Conditions ◽  
17Β Estradiol ◽  
High Concentrations ◽  
Biological Decomposition ◽  
Composted Sewage Sludge ◽  
Composted Sludge

Many environmental problems caused by endocrine disrupters (EDs) have been reported. Because little is known about the fate of EDs accumulated in sewage sludge, we carried out a study to clarify the fate of EDs in composted sludge after its application to soil. Nonylphenol (NP) and 17β-estradiol (E2) were measured for leachate and soil. High concentrations of NP and E2 were detected in the leachate at the early stage, but they decreased rapidly. Also, the high contents of NP and E2 in soil decreased significantly within 300 days. Because the decrease of NP and E2 in the soil was much larger than that of NP and E2 in the leachate, there must have been a physicochemical or biological decomposition mechanism in the soil layer. We also tried to clarify the transfer of NPs to plants from compost. In the experimental conditions of this study, the transfer of NPs to plants from compost was not observed.

DEGRADATION RATE OF LIMED SEWAGE SLUDGE IN AN AGRICULTURAL SOIL

2019 ◽  
Vol 18 (5) ◽  
pp. 1049-1055
Author(s):  
Antonio Matos ◽  
Isabela Diniz ◽  
Mateus Matos ◽  
Alisson Borges ◽  
Adriana Wilken
Keyword(s):  
Sewage Sludge ◽  
Agricultural Soil ◽  
Degradation Rate

Is NPA and Stock Return Related: An Empirical Study of Back Testing Model

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Madhvi . ◽  
Amit Gautam ◽  
Amit Srivastava
Keyword(s):  
Data Analysis ◽  
Panel Data ◽  
Stock Price ◽  
Panel Data Analysis ◽  
Negative Relationship ◽  
Share Price ◽  
Correlation Studies ◽  
Back Testing ◽  
Trading Model ◽  
The Relationship

This paper examines the relationship between NPA announcements by banks and the impulsive movement in stock price brought out by these announcements. Primary focus of this study is to determine whether we can create a swing trading model based on back testing the data for the banking stocks listed on the Indian bourses.To achieve this objective we created a databasespanning ten years (2006 to 2016) and collected the daily share prices of eight banks listed on Bombay Stock Exchange (BSE). The relationship between share price and changes in NPA is studied on the basis of correlation studies and panel-data analysis. Although correlation studies does not establish any significant relationship, but the result of panel-data analysis clearly shows a negative relationship between the two. The result is further utilized to develop swing trading model and get benefit out of it. The novelty of the present study is that it clearly guides the swing traders as to how to earn benefit because of fluctuations in share price due to announce of NPA result.

Organization-Based Self-Esteem Affects Employees' Exchange Relationship Perceptions and Extrarole Behavior

2016 ◽  
Vol 44 (3) ◽  
pp. 509-517 ◽  
Author(s):  
Yanhan Zhu
Keyword(s):  
Social Exchange ◽  
Positive Relationship ◽  
Mainland China ◽  
Negative Relationship ◽  
Self Esteem ◽  
Moderating Effect ◽  
Exchange Relationship ◽  
Significant Positive Relationship ◽  
Significant Negative Relationship ◽  
Practical Implications

The 2 types of exchange relationship perceptions—social exchange relationship perceptions (SERPs) and economic exchange relationship perceptions (EERPs)—constitute the primary concept for understanding individual behavior in the workplace. Using a sample of 581 employees from Mainland China, I explored the effects of SERPs and EERPs on employee extrarole behavior (ERB), as well as the moderating effect of organization-based self-esteem (OBSE) on the relationships between SERPs and ERB, and between EERPs and ERB. The results revealed a significant positive relationship between SERPs and ERB, a significant negative relationship between EERPs and ERB, and a significant moderating effect for OBSE. Theoretical and practical implications of these findings are discussed.

Attachment to God and Quest as Moderators of the Relationship between Religious Doubt and Mental Health

2021 ◽  
pp. 009164712199240
Author(s):  
Noah S. Love ◽  
Cassidy A. Merlo ◽  
M. Elizabeth Lewis Hall ◽  
Peter C. Hill
Keyword(s):  
Mental Health ◽  
Positive Relationship ◽  
Mental Health Problems ◽  
Negative Relationship ◽  
Health Problems ◽  
Positive Mental Health ◽  
Attachment To God ◽  
Religious Doubt ◽  
Avoidant Attachment ◽  
The Relationship

The present study examined attachment to God and quest as potential moderators of the relationship between religious doubt and mental health. A sample of Christian participants ( N = 235) completed a survey which included measures of attachment to God, quest, religious doubt, and mental health. As hypothesized, attachment to God and quest significantly moderated an individual’s experience of religious doubt. Low avoidant attachment to God (i.e., a more secure attachment) was associated with a more negative relationship between cognitive religious doubt and positive mental health than high avoidant attachment. In contrast, low avoidant attachment to God also ameliorated the positive relationship between affective religious doubt and mental health problems. Low anxious attachment was associated with a stronger negative relationship between both measures of religious doubt (i.e., cognitive and affective) and positive mental health. In addition, high soft quest weakened all four of the relationships between measures of religious doubt and mental health. High hard quest ameliorated the positive relationship between both measures of religious doubt and mental health problems. These results indicate that an individual’s attachment to God and the way an individual is oriented toward religion each play a role in the mental health outcomes associated with religious doubt.

scholarly journals Employee Behaviors toward Using and Saving Energy at Work. The Impact of Personality Traits

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3404
Author(s):  
Dawid Szostek
Keyword(s):  
Personality Traits ◽  
Energy Saving ◽  
Organizational Citizenship ◽  
Positive Relationship ◽  
Negative Relationship ◽  
Organizational Citizenship Behaviors ◽  
Equation Modeling ◽  
Future Research ◽  
Citizenship Behaviors ◽  
The Impact

The purpose of the article is to determine how personality traits (extraversion, neuroticism, conscientiousness, agreeableness and openness to experience) affect organizational citizenship behaviors for the environment (OCBE), especially in the context of energy saving. The purpose is also to verify the hypothesis that this impact is significantly moderated by individuals’ demographic characteristic (sex, age, length of service, work type and economic sector of employment). To achieve the purposes, a survey was conducted in 2020 on 454 working people from Poland. The analysis was based on structural equation modeling (SEM). The research model assumed that particular types of personality affect direct and indirect OCBEs, including energy-saving patterns. The model also included the aforementioned demographic characteristics of respondents. I proved that personality traits have a significant impact on direct and indirect organizational citizenship behaviors for the environment. In the case of direct OCBEs, the energy-saving items that were most significantly affected by employee personality were: I am a person who turns off my lights when leaving my office for any reason; I am a person who turns off the lights in a vacant room; I am a person who makes sure all of the lights are turned off if I am the last to leave. The strongest predicators were Neuroticism (negative relationship) and Agreeableness (positive relationship) for direct OCBE, but Extraversion (positive relationship) and Agreeableness (negative relationship) for indirect OCBE. The impact of an individual’s personality on OCBE was significantly moderated mainly for indirect behaviors. This applied to all the analyzed demographic variables, but it was stronger for women, employees aged up to 40 years, those with 10 years or more experience, office/clerical workers, and public sector employees. The article discusses the theoretical framework, research limitations, future research directions and practical implications.

scholarly journals Employees Perception of Training and Its Relationship with Organizational Commitment among the Employees Working at Saudi Industrial Development Fund

2017 ◽  
Vol 8 (2) ◽  
pp. 25 ◽  
Author(s):  
Mohammed S. Alamri ◽  
Thamir I. Al-Duhaim
Keyword(s):  
Organizational Commitment ◽  
Industrial Development ◽  
Affective Commitment ◽  
Positive Relationship ◽  
Negative Relationship ◽  
Simple Random Sample ◽  
Normative Commitment ◽  
Development Fund ◽  
Perceived Supervisor Support ◽  
Perceived Availability

The aim of this study is to examine employees perception of training provided by Saudi Industrial Development Fund (SIDF) and its relationship with organizational commitment. To achieve this aim, the study utilized a questionnaire consists of two validated, well established, international instruments: the first one is the perceived availability of training developed by Newman et al., (2011) and includes 22-item inventory that measures an individual on the training, the second instrument called commitment scale developed by Allen and Meyer, (1996) and includes 18-item inventory to identify a person’s commitment. This questionnaire has been distributed to a simple random sample consist of (200) employees of Saudi Industrial Development Fund. A total of (175) complete questionnaires has been received back at a response rate of (87%). After analyzing data and testing hypotheses, the main results of this study are:• There is a positive relationship between five training-related variables and affective commitment.• There is a positive relationship between two training-related variables (the perceived availability of training and perceived supervisor support for training) and two commitment-related variables (continuance and normative commitment).• There is a negative relationship between perceived co-worker support for training and two commitment-related variables (continuance and normative commitment).• There is no relationship between two training-related variables (the perceived benefits of training and motivation to learn) and two commitment-related variables (continuance and normative commitment).

Assessment of Environmental Quality of Soil Fertilized Grapefruit Trees with Municipal Sewage Sludge

2013 ◽  
Vol 671-674 ◽  
pp. 2736-2741
Author(s):  
Yin An Ming ◽  
Tao Tao
Keyword(s):  
Sewage Sludge ◽  
Environmental Quality ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Land Application ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Limiting Factor

To reuse municipal sewage sludge safely, experiment was carried out on grapefruit trees fertilized with composted sludge from Shiweitou Sewage Treatment Plant in Xiamen City of China, and a method was introduced of how to assess the environmental quality of grapefruit trees soil fertilized with sludge by Set Pair Analysis (SPA) model. The results showed that the soil in the surface layer (0-15cm) and the deeper layer (15-30cm) was less clean, and the environment of soil was not polluted. Thus it was feasible to use sludge as fruit fertilizer. The maximum service life of sludge for continuous land application was estimated by taking Cd as the limiting factor, which would provide scientific guide and technical support for safe land application of sludge.

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