scholarly journals Ecological-evolutionary analysis of lithium content in soils

2018 ◽  
Vol 17 (1-2) ◽  
pp. 31-39
Author(s):  
Y. M. Dmytruk
Keyword(s):  
Chemical Elements ◽  
Parent Rock ◽  
Analytical Determination ◽  
Future Research ◽  
Lithium Content ◽  
Evolutionary Analysis ◽  
Buried Soils ◽  
The Past ◽  
Mobile Forms ◽  
The Impact

The point is that investigation of geochemistry and behavior of Lithium in Ukraine’s soils is been rather exceptional. We have analyzed the content of Lithium in soils: modern and buried under the ramparts of various ages. The research territory includes Prut-Dniester and Prut-Siret interfluvial. Most often there are Phaeozems (Luvic Phaeozem, or Mollic Gleysol or Eutric Gleysol) and Chernozems (Luvic Chernozem or Chernic Chernozem). Buried soils are located directly near the modern background soils, so the differences between them are the result of evolution of the background soils during burial (the screening) after the construction of ramparts. On the Podvirna site current landscapes are wood and meadow-steppe; in the past, subboreal stage, were probably closer to the steppe; buried soil – Chernozem typical with a little profile, in the modern of soil structure prevails Luvic Phaeozem. The sites Ridkivtsi and Grushivka are characterized forest landscapes and in the past on those areas dominated wood-meadow landscapes. At present prevailing types of soils are Phaeozems or Gleysol. Soil samples have taken for the genetic horizons. After drying and preparing of soils in them had performed analytical determination of total content (Nitrate extract, followed by evaporation of hydrogen peroxide) of Lithium and its mobile forms (ammonium acetate-extract with pH = 4,8). The results of analyzes had processed by using statistical and mathematical testing based on the program «Statistica 6.0». Our obtained results are indicating background of total Lithium content, which ranges from 8,70 to 33,5 mg∙kg-1 and its average amount was 22,3±6,01 mg∙kg-1; amplitude quantity of Lithium mobile forms is between 0,20 to 2,60 mg∙kg-1, with an average content of 0,60±0,57 mg∙kg-1. The mean of total Lithium content of all soils with buried soils in particular are decreased from Podvirna site (27,4 mg∙kg-1) to the site Ridkivtsi (22,8 and 26,3 mg∙kg-1, accordingly) and site Grushivka (20,0 and 19,1 mg∙kg-1, accordingly), while the number of mobile forms changed significantly from substantial Podvirne hospital (1,43 mg∙kg-1) to the hospital Grushivka (0,83 and 0,91 mg∙kg-1, respectively) and hospital Ridkivtsi (0,44 and 0,79 mg∙kg-1, appropriately). In the majority of background soils we had discovered humus-eluvial-illuvial redistribution, sometimes - eluvial-illuvial redistribution. It is important to know that we had not observed high Lithium content in the parent rock of soils (except for two sections of the site Ridkivtsi with discussion rather recognition of the parent rock of the profile). This is demonstrating the determining influence of pedogenesis on the redistribution of chemical elements in the of soils. Actually, Lithium has often accumulated in the upper humus horizons (as a result of the impact of organic matter and of soil biota as a whole) or in the horizons of clay accumulation. To crown it all pedogenesis fundamentally has changing features of the vertical distribution of Lithium content. Concerning future research is necessity of application of isotopic analysis to identify the characteristics of different ages soils.

Fire, people and ecosystem change in Pleistocene Australia

2016 ◽  
Vol 64 (8) ◽  
pp. 643 ◽  
Author(s):  
Christopher N. Johnson
Keyword(s):  
Fire Regimes ◽  
Ecosystem Change ◽  
Future Research ◽  
Cascading Effects ◽  
Continental Scale ◽  
The Past ◽  
The 1960S ◽  
Relationship Of ◽  
The Impact ◽  
The Relationship

Since the 1960s, Australian scientists have speculated on the impact of human arrival on fire regimes in Australia, and on the relationship of landscape fire to extinction of the Pleistocene megafauna of Australia. These speculations have produced a series of contrasting hypotheses that can now be tested using evidence collected over the past two decades. In the present paper, I summarise those hypotheses and review that evidence. The main conclusions of this are that (1) the effects of people on fire regimes in the Pleistocene were modest at the continental scale, and difficult to distinguish from climatic controls on fire, (2) the arrival of people triggered extinction of Australia’s megafauna, but fire had little or no role in the extinction of those animals, which was probably due primarily to hunting and (3) megafaunal extinction is likely to have caused a cascade of changes that included increased fire, but only in some environments. We do not yet understand what environmental factors controlled the strength and nature of cascading effects of megafaunal extinction. This is an important topic for future research.

Quality of life following surgery for congenital cardiac malformations in neonates and infants

2005 ◽  
Vol 15 (S1) ◽  
pp. 174-178 ◽  
Author(s):  
Kathleen Mussatto ◽  
James Tweddell
Keyword(s):  
Quality Of Life ◽  
Future Research ◽  
Cardiac Malformations ◽  
The Past ◽  
Congenital Cardiac Disease ◽  
Major Shift ◽  
Neonates And Infants ◽  
The Impact

The past two decades have witnessed a major shift towards repair of most congenital cardiac malformations during the neonatal or infant periods of life.1 Early anatomic correction or palliation, dramatic improvements in survival, and reduced morbidity due to improvements in perioperative and long-term medical management, have resulted in new populations of children that have reaped the benefits of the best care currently available for treatment of congenital cardiac disease. The impact of the congenital cardiac malformations, however, extends far beyond the walls of the hospital or clinic where we diagnose, treat, and follow our patients. The breakthrough of achieving predictable results with repair or palliation of most lesions during the neonatal and infant periods mandates us to look beyond survival, and to examine the lives our patients lead when they are outside of our care. Our purpose in this review is to discuss the measures of psychosocial outcome that are appropriate for exploration in those neonates and infants who survive cardiac surgery, to explore what is known about the psychosocial outcomes and quality of life for these patients, and what needs exist for future research.

The Economics of Early Interventions Aimed at Child Development

2019 ◽  
Author(s):  
Samuel Berlinski ◽  
Marcos Vera-Hernández
Keyword(s):  
Child Development ◽  
Early Childhood Development ◽  
Parental Leave ◽  
Decision Makers ◽  
Childhood Development ◽  
Parenting Programs ◽  
Future Research ◽  
Early Interventions ◽  
The Past ◽  
The Impact

A set of policies is at the center of the agenda on early childhood development: parenting programs, childcare regulation and subsidies, cash and in-kind transfers, and parental leave policies. Incentives are embedded in these policies, and households react to them differently. They also have varying effects on child development, both in developed and developing countries. We have learned much about the impact of these policies in the past 20 years. We know that parenting programs can enhance child development, that centre based care might increase female labor force participation and child development, that parental leave policies beyond three months don’t cause improvement in children outcomes, and that the effects of transfers depend much on their design. In this review, we focus on the incentives embedded in these policies, and how they interact with the context and decision makers to understand the heterogeneity of effects and the mechanisms through which these policies work. We conclude by identifying areas of future research.

scholarly journals The Impact of Root Lesion Nematodes on Woody Plants

1984 ◽  
Vol 2 (4) ◽  
pp. 136-140
Author(s):  
J.T. Walker
Keyword(s):  
Woody Plants ◽  
Fruit Trees ◽  
Future Research ◽  
Common Root ◽  
The Past ◽  
Landscape Plants ◽  
Lesion Nematodes ◽  
Nursery Trees ◽  
Root Lesion Nematodes ◽  
The Impact

Lesion or meadow nematodes are not as well known to the plantsmen as common root-knot species, yet they do cause injury to fruit trees, woody landscape plants, and to some extent, forest (nursery) trees. Studies by numerous researchers have demonstrated that Pratylenchus species cause wilting, off-color foliage, fruit reduction, less root growth and general growth suppression. Research highlights of the past several decades are discussed in terms of the general effects these soil-inhabiting species have on plants and points are raised concerning the future research needed to better assess the impact of lesion nematodes on plants.

scholarly journals Data stream mining: methods and challenges for handling concept drift

2019 ◽  
Vol 1 (11) ◽  
Author(s):  
Scott Wares ◽  
John Isaacs ◽  
Eyad Elyan
Keyword(s):  
Data Stream ◽  
Concept Drift ◽  
Relevant Literature ◽  
Streaming Data ◽  
Future Research ◽  
Stream Mining ◽  
Detection Algorithms ◽  
The Past ◽  
Concept Drift Detection ◽  
The Impact

Abstract Mining and analysing streaming data is crucial for many applications, and this area of research has gained extensive attention over the past decade. However, there are several inherent problems that continue to challenge the hardware and the state-of-the art algorithmic solutions. Examples of such problems include the unbound size, varying speed and unknown data characteristics of arriving instances from a data stream. The aim of this research is to portray key challenges faced by algorithmic solutions for stream mining, particularly focusing on the prevalent issue of concept drift. A comprehensive discussion of concept drift and its inherent data challenges in the context of stream mining is presented, as is a critical, in-depth review of relevant literature. Current issues with the evaluative procedure for concept drift detectors is also explored, highlighting problems such as a lack of established base datasets and the impact of temporal dependence on concept drift detection. By exposing gaps in the current literature, this study suggests recommendations for future research which should aid in the progression of stream mining and concept drift detection algorithms.

The Impact of Online Reviews on the Information Flows and Outcomes of Marketing Systems

2021 ◽  
pp. 027614672110425
Author(s):  
Forrest Watson ◽  
Yinglu Wu
Keyword(s):  
Information Flow ◽  
Well Being ◽  
Online Reviews ◽  
Future Research ◽  
Information Flows ◽  
The Past ◽  
Consumer Feedback ◽  
Efficiency And Effectiveness ◽  
Marketing Systems ◽  
The Impact

Online reviews are changing the way that consumers shop and firms respond to consumer feedback. Viewed more broadly, online reviews are a type of information flow altering the functioning of marketing systems at the micro, meso, and macro levels. A systematic review of the past two decades of research shows great attention to the impact of online reviews on information flows, as well as the nuances of micro-and meso-level efficiency outcomes. However, there is scant consideration for the effectiveness related outcomes of online reviews (such as customer well-being, distributive justice, and externalities). Through a macromarketing lens, online reviews are an information flow with the potential to change well-being outcomes for all stakeholders, rather than just a tool to be exploited by firms or consumers. A theoretical framework and a series of questions are presented for future research on how online reviews and more generally information flows between actors may impact the efficiency and effectiveness of a marketing system.

scholarly journals Eco-Innovation Research in Indonesia: A Systematic Review and Future Directions

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Budi Harsanto
Keyword(s):  
Systematic Review ◽  
Search Strategy ◽  
Future Research ◽  
Future Directions ◽  
Innovation Research ◽  
The Past ◽  
The Impact ◽  
To Receive ◽  
Level Of Analysis ◽  
Research Analysis

Innovation by considering the impact to the ecological environment, known as eco-innovation, continues to receive increasing attention in at least the past two decades. This paper aims to provide an analysis on recent development of eco-innovation research in Indonesia and provide some potential avenues for future research. Analysis is carried out using systematic literature review (SLR) techniques to synthesize knowledge development of a scientific field in a structured, transparent, and reliable manner. The search was conducted on three academic databases, including Scopus, Google Scholar, and the local academic database of Garuda (<em>Garba Rujukan Digital</em>). Data analyzed using content analysis. The analysis shows that scholarly publication of eco-innovation research in Indonesia is still rare. The topics discussed can be categorized into several categories such as the driver of eco-innovation, R&amp;D for eco-innvation, eco-innovation performance, which addresses various types of eco-innovation and different level of analysis. Potential research avenues are then identified at the end of the paper. This is the first systematic review on eco-Innovation in Indonesia, and first combining systematic search strategy in the both local and international academic database.

Trend Analyses of Major Contributions in The Counseling Psychologist Cited from 1986 to 1996

1999 ◽  
Vol 27 (1) ◽  
pp. 73-95 ◽  
Author(s):  
Lisa Y. Flores ◽  
S. Craig Rooney ◽  
P. Paul Heppner ◽  
LaVonne Douglas Browne ◽  
Mei-Fen Wei
Keyword(s):  
Half Life ◽  
Impact Factors ◽  
Future Research ◽  
Official Publication ◽  
Professional Issues ◽  
Diverse Range ◽  
Men And Women ◽  
The Past ◽  
Number Of Citations ◽  
The Impact

This study commemorates the 30th anniversary of The Counseling Psychologist (TCP), the official publication of Division 17 since 1969. The investigation analyzes trends in the professional citations of the Major Contribution articles from the inception of TCP in 1969 through 1995. Results indicate (a) the impact factors and citation half-life statistics for Major Contribution articles for the years 1986 to 1996, (b) that citations of Major Contributions have increased over the past 11 years, (c) that Major Contribution articles are cited across a diverse range of disciplines, (d) that the number of Major Contribution articles in an issue is negatively related to the average number of citations for an issue, (e) the top 10 most frequently cited Major Contribution articles, (f) the percentages of Major Contributions published by men and women, and (g) emerging topic areas from citations of Major Contributions published from 1991 to 1995. Implications of the results are discussed with regard to professional issues, TCP, and future research.

Understanding the Role of Vaping in Criminal Behavior Among Adolescents

2021 ◽  
pp. 073401682110019
Author(s):  
Anthony G. Vito ◽  
Gregory C. Rocheleau ◽  
Jonathan Intravia
Keyword(s):  
Violent Crime ◽  
Criminal Behavior ◽  
Property Crime ◽  
Marijuana Use ◽  
Future Research ◽  
Data Set ◽  
The Past ◽  
12Th Grade ◽  
Monitoring The Future ◽  
The Impact

This study examines the link between ever vaped, vaped just flavoring in the past 30 days, and vaped just flavoring frequently in the past 30 days and violent crime, property crime, marijuana use, and smoking. Using the 2017 Monitoring the Future form two data set and propensity score matching, the researchers are better able to consider the impact of the vaping behavior among similarly situated 12th-grade adolescents. Results illustrate that there are no vaping behaviors linked with violent crime or property crime among similarly situated adolescents. In contrast, results show that adolescents who have ever vaped, vaped just flavoring, or vaped just flavoring frequently are linked with marijuana use and smoking. Limitations and future research implications are discussed.

scholarly journals Financial toxicity in cancer care: origins, impact, and solutions

2021 ◽  
Vol 11 (11) ◽  
pp. 2043-2054 ◽  
Author(s):  
Hannah R Abrams ◽  
Sienna Durbin ◽  
Cher X Huang ◽  
Shawn F Johnson ◽  
Rahul K Nayak ◽  
...  
Keyword(s):  
Cancer Care ◽  
Care Delivery ◽  
Financial Burden ◽  
Indirect Costs ◽  
Future Research ◽  
Financial Toxicity ◽  
Patients With Cancer ◽  
The Past ◽  
Financial Burdens ◽  
The Impact

Abstract Financial toxicity describes the financial burden and distress that can arise for patients, and their family members, as a result of cancer treatment. It includes direct out-of-pocket costs for treatment and indirect costs such as travel, time, and changes to employment that can increase the burden of cancer. While high costs of cancer care have threatened the sustainability of access to care for decades, it is only in the past 10 years that the term “financial toxicity” has been popularized to recognize that the financial burdens of care can be just as important as the physical toxicities traditionally associated with cancer therapy. The past decade has seen a rapid growth in research identifying the prevalence and impact of financial toxicity. Research is now beginning to focus on innovations in screening and care delivery that can mitigate this risk. There is a need to determine the optimal strategy for clinicians and cancer centers to address costs of care in order to minimize financial toxicity, promote access to high value care, and reduce health disparities. We review the evolution of concerns over costs of cancer care, the impact of financial burdens on patients, methods to screen for financial toxicity, proposed solutions, and priorities for future research to identify and address costs that threaten the health and quality of life for many patients with cancer.

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