Deformed Wing Virus in Honeybees and Other Insects

2019 ◽  
Vol 6 (1) ◽  
pp. 49-69 ◽  
Author(s):  
Stephen J. Martin ◽  
Laura E. Brettell

Deformed wing virus (DWV) has become the most well-known, widespread, and intensively studied insect pathogen in the world. Although DWV was previously present in honeybee populations, the arrival and global spread of a new vector, the ectoparasitic mite Varroa destructor, has dramatically altered DWV epidemiology. DWV is now the most prevalent virus in honeybees, with a minimum average of 55% of colonies/apiaries infected across 32 countries. Additionally, DWV has been detected in 65 arthropod species spanning eight insect orders and three orders of Arachnida. Here, we describe the significant progress that has been made in elucidating the capsid structure of the virus, understanding its ever-expanding host range, and tracking the constantly evolving DWV genome and formation of recombinants. The construction of molecular clones, working with DWV in cell lines, and the development of immunohistochemistry methods will all help the community to move forward. Identifying the tissues in which DWV variants are replicating and understanding the impact of DWV in non-honeybee hosts are major new goals.

2018 ◽  
Vol 13 (S349) ◽  
pp. 474-478
Author(s):  
Rosa M. Ros ◽  
Beatriz Garca

AbstractJust as in the past, the development of the natural sciences and in particular of astronomy has changed the history of humanity. If we think about the role of our discipline into the future, it shows its enormous power in the field of education, owing to the possibility of awakening interest in science in very varied audiences. Within the framework of the enormous progress made in the technologies related to astronomy, many of them of daily use, the role of the astronomer in the era of Communications acquires fundamental importance.In this presentation, we will try to make a journey through the different ways of presenting astronomical topics for different audiences over the last 100 years. In turn, we will show some specific achievements, associated with education programmes of the discipline. We discuss the impact produced by proposals that are both rigorous in terms of content, and also appeal to the development of the human being in an integral manner, within the framework of citizen science activities.For this research, we have taken into account the uninterrupted development of the NASE programme, which has performed 112 courses in 24 countries throughout the world and in different languages. NASE has involved 4966 secondary teachers in the last eight years.


2019 ◽  
Vol 8 (4) ◽  
pp. 12-18
Author(s):  
T. M. Alekseeva ◽  
T. R. Stuchevskaya ◽  
V. S. Demeshonok

Amyotrophic lateral sclerosis is a neurodegenerative disease, resulting in the loss of self-service and death of the middle-aged and elderly people. In the last 2 decades, significant progress has been made in the study of the pathogenesis of this disease. Two known drugs (riluzole and edaravone) have been approved by the Food and Drug Administration for treatment of amyotrophic lateral sclerosis. The efficacy of these drugs is extremely low, so clinical trials of new drugs are ongoing all over the world. This review discusses the current achievements and future directions of therapy of this disease.


2008 ◽  
Vol 55 (3) ◽  
pp. 369-381 ◽  
Author(s):  
Ahmed Alouani

The financial reform is one of the most important reforms prescribed by the Washington Consensus. With its internal and external components, it occurs in the final stages of the process of economic liberalization. In this work, and after listing, briefly, the causes of financial liberalization, we are going to study in a second section financial development and bank performance in four countries of the MENA region: Tunisia, Algeria, Morocco and Egypt. In this context, we will explore some criteria for determining if the banking sector is performing as the level of intermediation margins, the state of the banking service, and so on. The third section will be subject to an assessment of financial liberalization since the start of reforms to the present day, while focusing on the impact of liberalization on the investment, savings, capital entry, and so on. Our conclusion will be in the form of recommendations aimed at showing that overall reforms, significant progress have been made in recent years but much remains to be done.


2021 ◽  
pp. 2150016
Author(s):  
Reidar Staupe-Delgado

On March 11th, 2020, the World Health Organization (WHO) declared the emerging COVID-19 threat a pandemic following the global spread of the virus. As countries around the world implemented emergency measures in a concerted effort to handle the emerging pandemic, the nature and implications of the different kinds of precautionary measures adopted have remained contested. The majority of countries opted for efforts to slow the rate of infection, whilst critics have argued for stricter and milder measures, respectively. The living experience of the pandemic is inherently temporal as it is shaped by sentiments of living in anticipation of the envisioned pandemic peak(s) and aftermath, as vividly illustrated with references to the need for ‘flattening the curve’ so as to reduce the impact of the looming or creeping crisis. This paper sets out to critically discuss the notion of pandemic ‘strategies’, recognizing also that governments altered their strategic stances throughout the initial phase of the pandemic. It is likely that the aftermath of the crisis will trigger discussions of what kind of response should be considered as best practice. Thus, greater attention to the notion of ‘strategies’ in light of the COVID-19 pandemic is in order.


2016 ◽  
Vol 1 (15) ◽  
Author(s):  
Ljiljana Crnogorac ◽  
Boško Vuković

During the working of thermal power plants, due to technological process of coal combustion, wastematter, which takes up large areas of land, degrades and pollutes the environment, is created. In the lastyears, a significant progress has been made in the world in researching new technologies thatimplement technogenic materials which have wide range of optimal economic use.An example for thisis electrofilterash which is, as technogenic raw material,largly and more often used in building industry.This resulted in decreasing negative effects of ash which was deposited considerably on ash waste piles.The use of ash for different industry purposes decreases the costs, increases a company's profitandremoves the negative effects on the environment and human health.


2021 ◽  
Vol 57 (9) ◽  
pp. 6270-6273
Author(s):  
Punit Tibrewala

COVID-19 pandemic has brought the world to a standstill. People are locked in their houses having a very low option to move out during the lockdown period. The objective of the study is to focus on the impact of COVID-19 on consumer behaviour towards the use of mobile phones and their view towards Made in India products. The consumption pattern of individuals might be altered due to COVID-19 as there is no knowledge of when everything will be resumed back to normal. A survey sheet was floated to collect individual data via responses using social media platforms, blogs and calls. These responses would provide data for further analysis to determine the outcome of the study. Hypothesis testing method is used for the data analysis and to interpret the results  


2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Hasan S. Yamin ◽  
Amro Y. Alastal ◽  
Izzedin Bakri

Significant progress has been made in recent years in understanding the epidemiology of interstitial lung diseases (ILD) across the world, but the amount of information available is still small compared to other respiratory diseases like obstructive lung diseases or lung cancer. In this study we tried to explore the epidemiology of ILD in a virgin area of the world (Palestine), by describing a retrospectively collected cohort of newly diagnosed ILD cases in a single – and the only – Pulmonology center in Palestine over two years.


2004 ◽  
Vol 3 (4) ◽  
pp. 365-373 ◽  
Author(s):  
Susan Balloch ◽  
Laura Banks ◽  
Michael Hill

This study explores issues about securing quality of provision in social care using evidence from research into training in the adult care sector in two English local authorities. It shows that progress towards securing a trained workforce is slow and explores reasons for this. It argues that since the government is making particular efforts to increase training in this sector, these data provide a good test case of the problems about using regulation to raise care standards. It concludes that significant progress is unlikely to be made in respect of training unless the impact of other factors, such as the occupational segregation of the workforce and contracting out, are also taken into account.


2003 ◽  
Vol 63 (1) ◽  
pp. 83-86 ◽  
Author(s):  
G. Moretto ◽  
J. de M. Leonidas

Whereas in several parts of the world varroa is the major pest affecting apiculture, in others the parasite is unknown to many beekeepers because its damage to bees is minor. The impact of the mite Varroa destructor is related to the climatic conditions and the races of Apis mellifera bees in each region where the pest exists. In the present study, the current level of infestation by the mite was assessed to determine the evolution of the pest in Africanized bee colonies in Southern Brazil. This level of infestation was considered low: approximately two mites per one hundred adult bees. This result is similar to that obtained for the same apiary almost five years ago and for others distributed in various regions of Brazil. In the present study, we also estimated the total varroa population and its distribution among brood and adults in each bee colony.


aBIOTECH ◽  
2021 ◽  
Author(s):  
Shaoshuai Liu ◽  
Shuaifeng Geng ◽  
Aili Li ◽  
Yingbo Mao ◽  
Long Mao

AbstractThe RNAi technology takes advantage of the intrinsic RNA interference (RNAi) mechanism that exists in nearly all eukaryotes in which target mRNAs are degraded or functionally suppressed. Significant progress has been made in recent years where RNAi technology is applied to several crops and economic plants for protection against diseases like fungi, pests, and nematode. RNAi technology is also applied in controlling pathogen damages in wheat, one of the most important crops in the world. In this review, we first give a brief introduction of the RNAi technology and the underneath mechanism. We then review the recent progress of its utilization in crops, particular wheat. Finally, we discuss the existing challenges and prospect future development of this technology in crop protection.


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