scholarly journals Assessing the Toxicological Interaction Effects of Imidacloprid, Thiamethoxam, and Chlorpyrifos on Bombus Terrestris Based on the Combination Index

2021 ◽  
Author(s):  
Yongkui Zhang ◽  
Dongqiang Zeng ◽  
Lu Li ◽  
Xiuchun Hong ◽  
Hongmei Li-Byarlay ◽  
...  
Keyword(s):  
Agricultural Production ◽  
Pesticide Exposure ◽  
Bombus Terrestris ◽  
Synergistic Effects ◽  
Vital Role ◽  
Nontarget Organisms ◽  
Safety Risks ◽  
Pollinating Insects ◽  
Ecosystem Diversity ◽  
The Individual

Abstract In modern agricultural production, a variety of pesticides are widely used to protect crops against pests. However, extensive residues of these pesticides in the soil, water, and pollen have negatively affected the health of nontarget organisms, especially among pollinators such as bumblebees. As an important pollinator, the bumblebee plays a vital role in agricultural production and the maintenance of ecosystem diversity. Previous research has focused on the effects of a single pesticide on pollinating insects; however, the synergistic effects of multiple agents on bumblebees have been not studied in detail. In our test, the individual and combined toxicities of chlorpyrifos, thiamethoxam, and imidacloprid to bumblebees after 48 h of oral administration were documented by the equivalent linear equation method. Our results showed that the toxicity of each single pesticide exposure, from high to low, was imidacloprid, thiamethoxam, and chlorpyrifos. All binary and ternary combinations showed synergistic or additive effects. Therefore, our research not only shows that the mixed toxicity of insecticides has a significant effect on bumblebees, but also provides scientific guidelines for assessing the safety risks to bumblebees of these three insecticide compounds. In assessing the risk to pollinating insects, the toxicity levels of laboratory experiments are much lower than the actual toxicity in the field.

scholarly journals A new threat to bees? Entomopathogenic nematodes used in biological pest control cause rapid mortality inBombus terrestris

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1413 ◽  
Author(s):  
Alexandrea Dutka ◽  
Alison McNulty ◽  
Sally M. Williamson
Keyword(s):  
Pest Control ◽  
Broad Spectrum ◽  
Entomopathogenic Nematodes ◽  
Pesticide Exposure ◽  
Bombus Terrestris ◽  
Control Agent ◽  
Population Declines ◽  
Biological Pest Control ◽  
Bee Colony ◽  
Pollinating Insects

There is currently a great deal of concern about population declines in pollinating insects. Many potential threats have been identified which may adversely affect the behaviour and health of both honey bees and bumble bees: these include pesticide exposure, and parasites and pathogens. Whether biological pest control agents adversely affect bees has been much less well studied: it is generally assumed that biological agents are safer for wildlife than chemical pesticides. The aim of this study was to test whether entomopathogenic nematodes sold as biological pest control products could potentially have adverse effects on the bumble beeBombus terrestris. One product was a broad spectrum pest control agent containing bothHeterorhabditis sp. andSteinernema sp., the other product was specifically for weevil control and contained onlySteinernema kraussei. Both nematode products caused ≥80% mortality within the 96 h test period when bees were exposed to soil containing entomopathogenic nematodes at the recommended field concentration of 50 nematodes per cm2soil. Of particular concern is the fact that nematodes from the broad spectrum product could proliferate in the carcasses of dead bees, and therefore potentially infect a whole bee colony or spread to the wider environment.

Automated Control of the Microclimate in the Premises of Pig-Breeding Complexes

2020 ◽  
pp. 103-108
Author(s):  
Viktoriya Yu. Ukhanova
Keyword(s):  
Agricultural Production ◽  
Individual Characteristics ◽  
Feed Consumption ◽  
Management Systems ◽  
Research Purpose ◽  
Energy Costs ◽  
Technical Equipment ◽  
Pig Farming ◽  
The Individual ◽  
The Cost

In the pig breeding, a large share of the production cost is accounted for by the cost of electricity and heat. Reducing energy costs is one of the important tasks of the industry. It is important to identify and study modern technologies and equipment for pig farming due to the constant increase in electricity tariffs, significant energy costs for creating and maintaining a microclimate. (Research purpose) The research purpose is in an analysis of modern available technologies and equipment for agricultural production, including pig farming, allowing to reduce the cost of production. (Materials and methods) Authors used a method for determining the standard indicators of energy consumption of energy resources in the pig industry, based on the calculation and analytical method. The article presents an analyze of automated microclimate management systems in pig breeding complexes, taking into account the individual characteristics of farms produced by OWEN. (Results and discussion) Automated microclimate management systems can improve the productivity of pig farms; reduce the cost of electrical and thermal energy, reduce the number of diseases of animal from hypothermia, high humidity or temperature in the room, feed consumption; monitor the chemical composition of the air. The article considers three options for creating a microclimate in rooms with animals, taking into account the individual characteristics of enterprises. (Conclusions) The profitability of pig production depend on the level of technical equipment of farms, automation, and the use of energy-saving technologies and equipment. The use of innovations in agricultural production makes it possible to increase labor productivity up to three times, and savings due to reduced feed costs can reach several million rubles a year.

scholarly journals The Value of Recreational Ecosystem Services in India

2020 ◽  
Vol 3 (1) ◽  
pp. 80
Author(s):  
Muniyandi Balasubramanian
Keyword(s):  
Ecosystem Services ◽  
National Park ◽  
Economic Value ◽  
Consumer Surplus ◽  
Well Being ◽  
Vital Role ◽  
Human Beings ◽  
Forest Ecosystem Services ◽  
The Individual ◽  
Mental Well Being

Forest ecosystem services have played a vital role in human well-being. Particularly, recreational ecosystem services are creating physical and mental well-being for human beings. Therefore, the main objective of the paper is to estimate the economic value of recreational ecosystem services provides by recreational sites such as Nandi Hills and Nagarhole National Park based on the individual travel cost method in Karnataka, India. This study has used a random sampling method for 300 tourist visitors to recreational sites. The present study has also estimated the consumer surplus of the visitors. The results of the study have found that (i) economic value of two creational sites has been estimated at US $323.05 million, (ii) the consumer surplus has been estimated for Nandi Hills at US $7.45 and Nagarhole National Park at US $3.16. The main implication of the study is to design the entry fees for the recreational site and sustainable utilization of recreational ecosystem services for the present and future generations.

Nutrigenomics and Life Style Facet- A Modulatory Molecular Evidence in Progression of Breast and Colon Cancer with Emerging Importance

2021 ◽  
Vol 21 ◽  
Author(s):  
Suman Kumar Ray ◽  
Sukhes Mukherjee
Keyword(s):  
Colon Cancer ◽  
Molecular Mechanisms ◽  
Health Management ◽  
Vital Role ◽  
Molecular Evidence ◽  
Nutritional Interventions ◽  
Phenotypic Alteration ◽  
The Individual ◽  
Supplement Intake

: Legitimate nutrition assumes a significant role in preventing diseases and, in this way, nutritional interventions establish vital strategies in the area of public health. Nutrigenomics centres on the different genes and diet in an individual and how an individual’s genes influence the reaction to bioactive foodstuff. It targets considering the genetic and epigenetic interactions with nutrients to lead to a phenotypic alteration and consequently to metabolism, differentiation, or even apoptosis. Nutrigenomics and lifestyle factors play a vital role in health management and represent an exceptional prospect for the improvement of personalized diets to the individual at risk of developing diseases like cancer. Concerning cancer as a multifactorial genetic ailment, several aspects need to be investigated and analysed. Various perspectives should be researched and examined regarding the development and prognosis of breast and colon cancer. Malignant growth occurrence is anticipated to upsurge in the impending days, and an effective anticipatory strategy is required. The effect of dietary components, basically studied by nutrigenomics, looks at gene expression and molecular mechanisms. It also interrelates bioactive compounds and nutrients because of different 'omics' innovations. Several preclinical investigations demonstrate the pertinent role of nutrigenomics in breast and colon cancer, and change of dietary propensities is conceivably a successful methodology for reducing cancer risk. The connection between the genomic profile of patients with breast or colon cancer and their supplement intake, it is conceivable to imagine an idea of personalized medicine, including nutrition and medicinal services.

scholarly journals Reading Habits of Users of Sardar Patel University: A Study

2017 ◽  
Vol 4 (4) ◽  
Author(s):  
Dr. Shishir H. Mandalia
Keyword(s):  
Data Collection ◽  
Vital Role ◽  
Human Beings ◽  
Reading Habits ◽  
Knowledge And Skills ◽  
Continued Education ◽  
New Knowledge ◽  
The World ◽  
The Individual ◽  
The University

Reading plays a vital role in life of a human. Reading provides experience through which the individual may expand his horizons of knowledge, identify, extend and intensify his interest and gains deeper understanding of himself, of other human beings and of the world. The study carried out to assess the reading habits of user of Sardar Patel University, VallabhVidyanagar, Anand, Gujarat. As a research tool; questionnaire was used for the data collection. Collected data were analyzed and tables were used to present the results of findings. Reading especially is a resource for continued education, for the acquisition of new knowledge and skills, for gaining information through media, especially newspapers, books, radio, television, and the computers. In this article investigator attempts to investigate the reading habits of users of the university.

scholarly journals Farms Typologies and Their Impact on the Development of Rural Areas in Moldova

2018 ◽  
Vol 1 (1) ◽  
pp. 190-195
Author(s):  
Liliana Cimpoies ◽  
Elena Semionova
Keyword(s):  
Cluster Analysis ◽  
Rural Areas ◽  
Agricultural Production ◽  
Rural Economy ◽  
Family Farms ◽  
Market Place ◽  
Sustainable Rural Development ◽  
Different Types ◽  
The Individual ◽  
Academy Of Sciences

Abstract For Moldova’s agriculture are characterized the existence of many small family farms and only a small number of corporate holdings (limited liabilities companies, agricultural production cooperatives etc). Most of individual farms, small by size produce only for own family consumption and cannot find their way to the market place. The accentuated poverty makes rural economy to flow more and more to a natural subsistence economy, isolating itself from the market economy. The goal of this paper is to delimitate different types of farms based on selected indicators and to appreciate their level of development. Differences in farms levels of development are appreciated through cluster analysis. The research includes the analysis of farms survey data. This research was carried as a part of the Academy of Sciences project “Sustainable rural development in Republic of Moldova in the context of EU accession”. In the project were surveyed 938 individual farms from nine districts across the country. As a result, we distinguish three types of farms: natural, family and market household. The cluster analysis allows to characterize the farms level development, to determine the main priority directions, and to elaborate measures for the individual farms further sustainable development.

scholarly journals Reflection on EFL/ESL Teachers' Emotional Creativity and Students L2 Engagement

2021 ◽  
Vol 12 ◽  
Author(s):  
Xianyi Sun ◽  
Jiao Li ◽  
Lan Meng
Keyword(s):  
Vital Role ◽  
Future Research ◽  
Social Aspect ◽  
Human Beings ◽  
Environmental Aspects ◽  
Esl Teachers ◽  
Level Of Involvement ◽  
Emotional Aspect ◽  
Individual Aspect ◽  
The Individual

Emotions are one of the pillars of all human beings which can play a vital role in providing education. Emotions can affect all aspects of education. The feeling of creativity is one of the subsets of emotions. This feeling strongly affects the performance of education and the level of involvement of students. Student involvement has different aspects: social aspect; individual aspect, and emotional aspect. The present review shows that the emotional aspect of L2 engagement plays a pivotal role in the process of learning the language in English as a foreign language (EFL) and English as a second language (ESL) context. In dealing with the emotional aspect of teachers, the personal, social, and environmental aspects of the individual should be considered. The paper concludes with some pedagogical implications and provides some suggestions for future research.

scholarly journals Assessment of Impact of Capital Acquisitions on the Economic Situation of Consolidated Entities in the Czech Republic

2019 ◽  
Vol 67 (5) ◽  
pp. 1335-1345
Author(s):  
Jaroslava Rajchlová ◽  
Anna Fedorová ◽  
Kristina Somerlíková ◽  
Libor Grega
Keyword(s):  
Czech Republic ◽  
Synergistic Effects ◽  
Business Environment ◽  
Fundamental Aspect ◽  
Consolidated Financial Statements ◽  
The Czech Republic ◽  
Individual Assessment ◽  
Research Level ◽  
The Individual ◽  
Parent Companies

Business acquisition constitutes a fundamental aspect of business environment formation. Our research has focused on assessment of impact of capital acquisition on the economic condition of the company. Therefore, the second research level has been initiated, focusing on the individual assessment of the single companies to identify allocation of synergy between consolidated units and parent companies in the Czech Republic. For our research, taking into consideration availability of data and subsequent explanatory value of the results, we will consider synergistic effect as presented in the Ansoff’s concept. Consolidated financial statements of totally 719 groups of accounting entities – business concerns in the Czech Republic has been studied in the research. A composite indicator, as the modern tool for comparison and evaluation of development of entities, has been selected to compare individual economic indicators of parent companies and group of their companies. We believe that developed arguments allow us to formulate conclusion that capital acquisitions, resulting in the years 2008–2013 in the obligation to compile consolidated financial statement, have brought positive financial synergistic effects in majority of cases, and we can rank them among successful business activities.

scholarly journals Bypassing Energy Barriers in Fiber-Polymer Torrefaction

2021 ◽  
Vol 9 ◽  
Author(s):  
Zhuo Xu ◽  
Shreyas S. Kolapkar ◽  
Stas Zinchik ◽  
Ezra Bar-Ziv ◽  
Lucky Ewurum ◽  
...  
Keyword(s):  
Mass Loss ◽  
Synergistic Effects ◽  
Mass Loss Rate ◽  
Reactive Extrusion ◽  
Extrusion Process ◽  
Energy Barriers ◽  
Natural Energy ◽  
Plastic Wastes ◽  
The Individual ◽  
Blend Ratios

The amount of waste generation has been increasing with a significant amount being landfilled. These non-recyclable wastes contain large number of fiber and plastic wastes which can be treated with thermal processes to turn them into energy sources since they have high calorific values, are abundant and usually tipping fees are paid to handle them. This paper studied the torrefaction of non-recyclable paper (fiber) wastes, mixed plastic wastes (MPW) and their blends at different ratios in the temperature range of 250–400°C through thermogravimetric analysis (TGA). The solid residues after the experiments were analyzed by nuclear magnetic resonance (NMR) spectroscopy. Significant synergy between fiber and MPW were observed at the range 250–300°C, showing both increase in the reaction rate as well as the overall mass loss. At 250°C, the maximum mass loss rate was more than two times higher and the mass loss at the end of the experiments were also much higher compared to the expected results. In addition, synergy was weakened with an increase of temperature, disappearing at 400°C. The existence of such interactions between fiber and plastic wastes indicates that the natural energy barriers during the individual torrefaction in paper waste or plastic waste could be bypassed, and the torrefaction of fiber and plastic blend can be achieved at lower temperatures and/or shorter residence times. The MPW and fiber wastes were also compounded by extrusion (to produce pellets) at 220°C with different blend ratios. The fiber-MPW pellets from extrusion were characterized by IR spectroscopy, rheology, thermal analysis and flexural properties and showed significant chemical changes from the non-extruded blends at the same ratios. From IR characterization, it was found that there was significant increase in hydroxyl (OH) group on account of the carbonyl (C = O) and etheric (C-O-C) groups. The interaction between paper and MPW can be attributed to the plastic polymers acting as a hydrogen donor during the reactive extrusion process. Synergistic effects were also found from mechanical and rheological properties.

Property reckoning and methods of accumulating wealth among the Ogoni of the eastern Niger delta

Africa ◽  
1997 ◽  
Vol 67 (1) ◽  
pp. 130-158 ◽  
Author(s):  
Sonpie Kpone-Tonwe
Keyword(s):  
Agricultural Production ◽  
Niger Delta ◽  
Linguistic Analysis ◽  
Substantial Proportion ◽  
Equatorial Guinea ◽  
Long Distance ◽  
Marine Transport ◽  
Colonial Economy ◽  
The Individual

This article is a product of research in the Ogoni region of the Niger delta between 1981 and 1991. It analyses an aspect of the pre-colonial economy of Ogoni, which aimed at preserving the proceeds of agricultural production and increasing the wealth of the individual. Agricultural production was not all for subsistence. A substantial proportion was sold off and the proceeds invested in the economy. The article argues that this was possible because the Ogoni were acquainted with the use of an all-purpose currency before the arrival of Europeans. By a method of linguistic analysis it was possible to trace the existence of such an indigenous currency and its spread from the Ogoni area to the rest of the eastern Niger delta and to the greater part of south-east Nigeria. It is shown that the Ogoni were major producers and distributors of large transport and fishing canoes in the eastern Niger delta. A thriving canoe-making industry at Ko on the Imo river, led to a culture of marine transport and distributive long-distance trade through the waterways of the delta and to the island of Equatorial Guinea and to the Cameroons. The conclusion summarises the evidence and drives home the fact that in pre-colonial Ogoni wealth was accumulated and reckoned not by the yardstick of more cash but by the possession of livestock and landed property.

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